career vitae · web viewselect sires, columbus, oh cooperators meeting (invited speaker), 1992 sire...

Career VitaeDR. GEORGE R. WIGGANS

Present Research geneticist (retired)Position Animal Genomics and Improvement Laboratory (AGIL)

Agricultural Research Service (ARS), U.S. Department of Agriculture (USDA)

Present Council on Dairy Cattle BreedingAddress One Town Center, 4201 Northview Dr., Suite 302, Bowie, MD 20716, USA

240-393-0291 (mobile)[email protected]

Citizenship United States (born May 23, 1946, in Auburn, NY)

Education Cornell University, B.S., dairy science, 1968Cornell University, M.S., animal breeding, 1969Cornell University, Ph.D., animal breeding, 1978

Employment Graduate research assistant, Cornell University, Ithaca, NY, 1968–69, 1974–77Volunteer (Laos), International Voluntary Services, Washington, DC, 1969–72Teacher/counselor, Green Chimneys School, Brewster, NY, 1972–74Research assistant, Cornell University, Ithaca, NY, 1977–78Research geneticist, Animal Improvement Programs Laboratory (AIPL; now AGIL), ARS,

USDA, Beltsville, MD, 1978–2016 Visiting Scientist, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel,

1982Visiting Professor, Department of Animal Sciences, University of Illinois, Urbana, 1986–87Visiting Scientist, Animal Genetics and Breeding Unit, University of New England,

Armidale, Australia, 1995Visiting Scientist, Livestock Improvement, Hamilton, New Zealand, 1995–96Visiting Scientist, Department of Primary Industries, Melbourne, Australia, 2009Acting research leader, AIPL, ARS, USDA, Beltsville, MD, 2012–14Visiting scientist, AGIL, ARS, USDA, Beltsville, MD, 2016–presentTechnical advisor, Council on Dairy Cattle Breeding, Bowie, MD, 2016–present

Societies Alpha Zeta Agricultural HonoraryAmerican Association for the Advancement of ScienceAmerican Dairy Science AssociationAmerican Society of Animal ScienceDairy Shrine

Honors

Individual Agriculture, Food, Nutrition and Natural Resources R&D Round Table, Exemplary Case Awards Selected for Special Recognition, 2011

American Association for the Advancement of Science (elected Fellow), 1997American Dairy Goat Association, Mary L. Farley Award, 2001American Dairy Science Association

Fellow Award, 2012J.L. Lush Award in Animal Breeding and Genetics, 1996Most Cited Award (Genetics and Breeding), 2014

mailto:[email protected]

Career Vitae, DR. GEORGE R. WIGGANS (2)

American Registry of Professional Animal Scientists, Washington, DC, Chapter, Dr. Vernon G. Pursel Memorial Distinguished Service Award, 2015

Honors (cont.)

Individual Gamma Sigma Delta, University of Maryland–National Capital Area Chapter, InternationalAwards Distinguished Service Award of Merit, 2010(cont.) National Association of Animal Breeders, Research Award, 1996

National Dairy Herd Improvement Association, Outstanding Service Award, 2006USDA cash performance awards

Development of computerized managements systems for feed inventory/ billing and dairy animal assignment/location in animal operations, 1988

Development of strategies to make an animal model useful for the U.S. dairy industry and preparation of written material to support the educational effort, 1990

Exceptional achievement in planning, conducting, and publishing research reports to improve accuracy of genetic evaluations for yield, productive live, and conformation traits, 2001

Outstanding performance as research geneticist, 1991Superior performance in planning, conducting, and publishing dairy genetics research

and transferring results to the dairy industry, 2002Superior performance, with superb performance in all research elements, 2000

Group Agriculture, Food, Nutrition, and Natural Resources R&D Round Table, Exemplary CaseAwards Selected for Special Recognition, 2011

ARS, USDA, Superior Effort Technology Transfer Award, 2000Beltsville Agricultural Research Center Public Field Day exhibit (3rd place), 2000Council on Dairy Cattle Breeding, Award of Recognition, 2015Federal Laboratory Consortium for Technology Transfer Citation, 2000Government Executive magazine, Government Technology Leadership Award, 1998Holstein World, “Web Site of the Month” Award, 1998IBM 3090 Supercomputing Competition, Life and Health Sciences Division, 3rd prize for

paper “Dairy Genetic Evaluations Using Information from Relatives,” 1989Journal of Dairy Science, Genetics and Breeding section, Featured Article of the Month

(Editor’s Choice), March (2 articles) and August (1 article), 2013; March (1 article), 2015

National Dairy Herd Improvement Association, Award of Special Appreciation, 1991 National Partnership for Reinventing Government (Vice-Presidential Hammer) Award,

2000USDA

Secretary’s Honor Award, ARS Cattle Genomics Consortium, 2010Unit Award for Distinguished Service, 1991

Grants American Dairy Goat AssociationDevelopment of Genetic Evaluation Procedures for Economically Important Traits in

Dairy Goats, $20,000, 1988–93 Development of Genetic Evaluation Procedures for Production Traits in Dairy Goats,

$10,000, 1984–89 Binational Agricultural Research and Development Fund

A Systematic Genome Search for Genes Affecting Economic Traits in Dairy Cattle, $330,000, 1996–99

Detection and Mapping of Genes Affecting Traits of Economic Importance in Dairy Cattle with the Aid of Molecular Genetic Markers, $17,000, 1992–95

Determination of actual polymorphisms responsible for economic trait variation in dairy cattle, $144,000, 2015–18


Development of Improved Methodology for Estimating Genetic Merit of Bulls and Cows in the USA and Israel, $250,000, 1982–85

Grants National Association of Animal Breeding(cont.) Development and Enhancement of Genetic Evaluations for Calving Traits, $50,000,

2005–10Improved Genetic Evaluations for Calving Ease, $60,000, 1999–2004

National Research Initiative Competitive Grant (Cooperative State Research, Education, and Extension Service)Genome Signature of Artificial Selection and Genome-Wide Association Analysis in

Holstein Cows, $450,000, 2008–09Large Scale Bovine SNP Genotyping for Genomic Selection and HapMap Development,

$409,428, 2006–09

Activities 3rd International conference on Goat Production and Disease (invited speaker), Tucson, AZ, 1982

4th World Congress on Genetics Applied to Livestock Production, Breeding Value Prediction with the Animal Model Workshop (invited chair), Edinburgh, Scotland, 1990

5th World Congress on Genetics Applied to Livestock Production (invited speaker), Guelph, Canada, 1994

6th World Congress on Genetics Applied to Livestock Production (invited speaker and session chair), Armidale, Australia, 1998

32nd International Symposium “Animal Production: Advances in Technology, Accuracy and Management” (invited speaker), Milan, Italy, 1997

Agricultural University of Wageningen, Netherlands, visiting research assistant program (project supervisor), 1986–93

Alta Genetics sire analyst meeting (invited speaker), Watertown, WI, 2010, 2016American Breeders Service, Sales Manager Conference (invited speaker), New

Cumberland, PA, 1984American Dairy Goat Association annual meetings (invited speaker), 1983–84, 1987–89,

2000, 2002, 2006American Dairy Science Association

Animal Model Workshop (initiator and organizer), 1988Annual meeting (invited speaker), 1993 (“Meeting the Information Needs of the Dairy

Industry” Symposium), 1996, 1998 (“Prospects of the US Dairy and Meat Goat Industry” Symposium), 2000, 2007

Dairy Cattle Improvement Committee (member), 1996–98 Electronic Journal Committee (chair), 1997–98Interpretative Summary Committee (member), 2003Journal of Dairy Science

Associate editor (Genetics and Breeding), 1988–91Editor, 1991–92Editorial board (member), 1984–88, 2000–05Reviewer, 1984–present

Journal Management Committee (member), 1999–2002American Society of Animal Science, Midwestern Section annual meeting (invited

symposium speaker), Des Moines, IA, 1990American Registry of Professional Animal Scientists, Washington, DC, Chapter

Board of directors (member), 2013–16Monthly seminar (invited speaker), Beltsville, MD, 2015

American Veterinary Medical Association Congressional Fellows briefing (invited speaker), Beltsville, MD, 2011


Animal Agriculture Project, Blue Ribbon Panel for Genetics and Genomics (member), Chicago, IL, 2011

Argentine dairy industry seminar series (invited speaker), 1988Activities Australian Dairy Herd Improvement Scheme (resource person), Attwood, Australia, 1995(cont.) Binational Agricultural Research and Development

Animal Production Proposal Review Committee (member), 1999–2001Directors meeting (invited speaker), Beltsville, MD, 1993

Bovine LD Consortium (member), 2011British Cattle Breeders’ Conference (invited speaker), Telford, Shropshire, UK, 2015Canadian Genetic Evaluation/Research Workshop (invited speaker), Guelph, ON, Canada,

1994Centre for the Genetic Improvement of Livestock, Agriculture and Agri-Foods Canada;

Canadian Dairy Network; and Dairy Cattle Genetics Research and Development (DairyGen) Council (program and project reviewer), 1990, 2005–07, 2011

China Agricultural University seminar (invited speaker), Beijing, China, 2011Conference on Large Scale Analysis and Modeling (invited speaker), Gainesville, FL, 1990Context Network blue ribbon panel on assessing genetics and genomics in the animal

industry (invited member), 2011Continuous Evaluation in Dairy Cattle Symposium (invited speaker), College Park, MD,

1993Core Agricultural Literature project (invited author), 1992Cornell University, Ithaca, NY

Department of Animal Science seminar (invited speaker), 1987, 1991, 2015Department of Plant Breeding and Genetics seminar (invited speaker), 2011Goat Genetics & Reproduction Field Day (invited speaker), 2003National Supercomputer Facility Research Experiences (invited speaker), 1989Sheep & Goat Symposium (invited speaker), 2005

Council on Dairy Cattle Breeding Council meetings (resource person), 2008–presentIndustry meeting (invited speaker), Madison, WI, 2015USDA liaison (2011–16)

CRI Emerging Markets Program (invited speaker), Washington, DC, 2009Dairy Cattle Reproduction Council Convention (invited speaker), St. Paul, MN, 2010Dairy Records Management Systems annual meeting (invited speaker), 1984, 1996Dairy Research Development Corporation (invited speaker), Hamilton, New Zealand,

1995DHI-Provo

Advisory Group annual meeting (invited speaker), Provo, UT, 1983Computing Service Workshop (invited speaker), 1983, 1993Herd Management Conference (invited speaker), 2005, 2009Users meeting (invited speaker), 2010

DNA LandMarks User Group meeting (invited speaker), Saint-Jean-sur-Richelieu, QC, Canada, 2011

Encyclopedia of Dairy Sciences Editorial Advisory Board, 1999–2002, 2007–11Book chapter (invited author), 2000, 2008

GenElite Japanese Genomics Tour (invited speaker), Beltsville, MD, 2013Genetics in the Age of Genomics Conference (invited speaker), Scottsdale, AZ, 2015George Washington University (Ph.D. external examiner), 1998Georgetown University student tour (invited speaker), Beltsville, MD, 2010Holstein Association USA

Board of directors meeting (resource person), 1981Genetic Advancement Committee (resource person), 1989–90, 1994, 1998, 2010–11


IBM Institute (invited speaker), Oberlech, Austria, 1988Idaho Farm Bureau study tour (invited speaker), Beltsville, MD, 2010Illumina Agrogenomics User Group meeting (invited speaker), St. Louis, MO, 2011

Activities Inner Mongolia Agricultural University Workshop on Holstein Breeding and Management(cont.) (invited lecturer), Hohhot, China, 2009

International Bull Evaluation Service (Interbull)Committee To Establish Standard Procedures and Definitions for Animal Model

Implementation, 1988 (member), 1989 (invited speaker)Experiences with Animal Model Implementation Workshop (speaker recruiter and

invited speaker), Paris, France, 1990Technical Workshop

Wageningen, Netherlands (invited speaker), 2006Guelph, ON, Canada (invited session leader), 2011

International Conference on Agricultural Technology (invited speaker), Washington, DC, 1984

International Committee for Animal Recording Biennial session (invited speaker), Niagara Falls, NY, 2008Parentage Recording Working Group (member), 2010–16

International Dairy Congress, Genetic Evaluation for the 21st Century Session (invited chair), Montreal, QC, Canada, 1990

International Science Foundation proposal (invited reviewer), 2009Internet2 Global Summit (ARS representative and speaker), Denver, CO, 2014Maryland Dairy Goat Association meeting (invited speaker), Westminster, MD, 1981Maryland Technology Development Corporation, Maryland Rural Agricultural and

Business Innovation Forum (invited speaker), Aberdeen, MD, 2011Minnesota Dairy Health Conference (invited speaker), Bloomington, MN, 2011Multicooperator Dairy Improvement Program for Venezuela seminar series (invited

speaker), 1985National Association of Animal Breeders

Annual meeting (invited speaker), McLean, VA, 1988Dairy Sire Evaluation Committee (resource person), 1987–presentData Processing Committee (resource person), 2007–09Information Processing Committee meeting (invited speaker), 2002Information Processing Workshop (invited speaker), New Carrollton, MD, 1987International Dairy Press Tours (resource person), 1990–92, 1994, 1996, 1999–2002International Marketing Committee, 2002 (resource person and invited speaker),

2004–06 (resource person)Sire Analyst Conferences (resource person), 1978–80, 1985, 1988, 1990, 1993Turkish Visitors Conference (invited speaker), Beltsville, MD, 2015Workshop (invited speaker), Annapolis Junction, MD, 1988

National Association of Farm Broadcasters (invited speaker), Beltsville, MD, 2008National Breeders Roundtable (invited speaker), St. Louis, MO, 2008, 2011National Cooperative Dairy Herd Improvement Program

Annual meeting (invited speaker), 2000, 2006Dairy Records Processing Center Workshop (invited speaker), 1979, 1985, 1989,

1991, 2010Data Processing Committee (resource person), 1985, 2004–05 Research Committee (invited speaker), Columbus, OH, 1982Research and Education Committee (member and secretary), 1983–86

National Dairy Genetics Workshop (invited speaker), Orlando, FL 1998National Dairy Herd Improvement Association annual meeting (invited speaker), 2000,

2006


National Research Council Symposium and Workshop “Building a National Feed Composition Data Base” (resource person), 1992

NC-2 Regional Project Technical Committee (resource person), 1986, 1989

Activities New Research on Livestock Science and Dairy Farming book chapter (invited coauthor),(cont.) 2005

New Zealand Animal Evaluation Ltd., Hamilton, New ZealandAnimal Evaluation Technical Review Committee (member), 1995–96Dairy geneticists and industry meetings (invited speaker), 1993Project reviewer (invited), 1993, 2004, 2007–08

New Zealand Society of Animal Production annual meeting (invited speaker), Hamilton, New Zealand, 1996

Northeast Dairy Goat Herd Improvement Association annual meeting (invited speaker), 1978, 1989

Northeast Sheep and Goat Genetic Alliance Symposium (invited speaker), Springfield, MA, 2001

Northeast Testing Conference (invited speaker), Ellenville, NY, 1980Ohio State University seminar (invited speaker), Columbus, OH, 1989Pennsylvania Dairy Goat Association annual meeting (invited speaker), State College, PA,

1987Pennsylvania Dairy Herd Improvement Association, Dairy Records Processing Center

Advisory Committee meeting (invited speaker), State College, PA, 1993Poultry Breeders of America Roundtable (invited speaker), St. Louis, MO, 2008, 2011Purebred Dairy Cattle Association seminar (invited speaker), Brattleboro, VT, 1988Ruakura Animal Breeding Seminar Group (invited speaker), Hamilton, New Zealand, 1995Scotland’s Rural College (SRUC), Edinburgh, Scotland

Animal Breeding and Genomics seminar (invited speaker), 2013, 2015National genomic evaluation system review in conjunction with EGENES and Animal

& Veterinary Sciences Research Group (invited reviewer), 2011Select Sires, Columbus, OH

Cooperators meeting (invited speaker), 1992Sire Committee

Conference (invited speaker), 1988Meeting (invited speaker), 2008, 2010–11)

Small Business Innovation Research grants program (proposal reviewer), 2000–01Swiss Federal Institute of Technology, Animal Workshop (invited speaker), Zurich,

Switzerland, 1990TADCO conference (invited speaker), Aberdeen, MD, 2011Technology Foundation of the Netherlands proposal (invited reviewer), 2010The Genetics of Cattle book chapter (invited coauthor), 1997, 2012The Literature of Animal Science and Health book chapter (invited author), 1992University of Georgia

Department of Animal and Dairy Science seminar (invited speaker), Athens, GA, 1980, 1996, 2006

Ph.D. Committee (member), 2009–10University of Guelph, Department of Animal and Poultry Sciences seminar (invited

speaker), Guelph, ON, Canada, 1987, 2005University of Illinois, Urbana, IL

Department of Animal Sciences seminar (invited speaker), 1986, 1991Ph.D. committee (member), 1991

University of Maryland, College Park, MDDepartment of Dairy Science

Dairy cattle breeding course (invited instructor), 1981


Seminar (invited speaker), 1978, 2013M.S. committee (member), 1981Ph.D. committees (member), 2007–10, 2012–14Selection Committee (member), statistics and genomics positions, 2005

Activities University of New England, Animal Genetics and Breeding Unit seminar (invited speaker),(cont.) Armidale, Australia, 1995

University of Wisconsin, Department of Dairy Sciences seminar (invited speaker), Madison, WI, 1987

U.S. Agency for International Development, Grant Proposal Review Board (member), 1986, 1993

U.S. Department of State (project reviewer), 2002U.S.-Canadian dairy industry meetings (invited speaker), Buffalo, NY; Toronto, ON,

Canada, 1991USDA

ARSChief Scientific Information Officer (acting), 2014Big Data Workshop (invited speaker), Beltsville, MD, 2013, 2015Genomics research meeting (invited participant), San Diego, CA, 2008–10Research for Small Farms Symposium (invited speaker), Beltsville, MD, 1981Research Position Evaluation System panel (member), 2009–11Workshop on Goat's Milk: Production, Processing, Products (invited speaker),

Philadelphia, PA, 1981Cooperative State Research, Education, and Extension Service

Agriculture and Food Research Initiative genomics panel (member), 2009–10 “New Uses for DHIA Data” Symposium, San Antonio, TX, 1994

Foreign Agricultural ServiceCroatian Holstein Breeders Federation and MOA/Veterinary Affairs study tour

(invited speaker), Beltsville, MD, 2009Russian and Ukrainian dairy industry representatives briefing (invited speaker),

Beltsville, MD, 1997Spanish agriculturists briefing (invited speaker), Beltsville, MD, 2010Zenrakuren (Japan) Dairy Team briefing (invited speaker), Washington, DC, 1983

National Institute of Food and Agriculture, Agriculture and Food Research InitiativeReview panel (invited member), Washington, DC, 2010Exploratory Research Program funding proposal (ad hoc reviewer), 2014–15Breeding and Genomics of Crops and Livestock panel (invited member), 2015

Virginia Holstein Association annual meeting (invited speaker), Roanoake, VA, 1989Volcani Center, Agricultural Research Organization (collaborator), Bet Dagan, Israel, 1982,

1984World-EXPO 2000 Workshop on Animal Breeding and Animal Genetic Resources (invited

speaker), Mariensee, Germany, 2000 WorldWide Sires (in conjunction with USDA Foreign Agricultural Service), Initiative for

China Dairy Herd Improvement Conference, Emerging Markets Program presentations (invited speaker), Beijing, China, 2012, 2013


Peer-Reviewed Scientific Publications

Wiggans, G.R., and L.D. Van Vleck. 1970. Variation within herds under different housing systems. J. Dairy Sci. 53:541–544.

Wiggans, G.R., and L.D. Van Vleck. 1970. Sire effects in different housing systems. J. Dairy Sci. 53:545–547.

McDowell, R.E., G.R. Wiggans, J.K. Camoens, L.D. Van Vleck, and D.G. St. Louis. 1976. Sire comparisons for Holsteins in Mexico versus the United States and Canada. J. Dairy Sci. 59:298–304.

Wiggans, G.R., and L.D. Van Vleck. 1977. Interpolation for extension factors. J. Dairy Sci. 60:1653–1654.

Wiggans, G.R., and L.D. Van Vleck. 1977. Age-season adjustment factors considering herd feeding practices. J. Dairy Sci. 60:1734–1738.

Wiggans, G.R., and L.D. Van Vleck. 1978. Effect of proportion of concentrates in herd ration on lactation curves. J. Dairy Sci. 61:135–140.

Wiggans, G.R., and L.D. Van Vleck. 1978. Evaluation of sires in groups of herds feeding differing proportions of concentrates and roughages. J. Dairy Sci. 61:246–249.

Wiggans, G.R., and L.D. Van Vleck. 1979. Extending partial lactation milk and fat records with a function of last-sample production. J. Dairy Sci. 62:316–325.

Moreno, A.M., G.R. Wiggans, and L.D. Van Vleck. 1979. Genetic and herd-year variation in type traits of Brown Swiss cows. J. Dairy Sci. 62:486–492.

Wiggans, G.R., L.D. Van Vleck, and F.N. Dickinson. 1979. Projection factors for goat lactation records. J. Dairy Sci. 62:797–801.

Van Vleck, L.D., P.J. Karner, and G.R. Wiggans. 1980. Relationships among type traits and milk yield of Brown Swiss cattle. J. Dairy Sci. 63:120–132.

Wiggans, G.R., R.L. Quaas, and L.D. Van Vleck. 1980. Estimating a genetic covariance from least squares solutions. J. Dairy Sci. 63:174–177.

Wiggans, G.R. 1980. Contribution of days since bred, herd average, and sample-day production to accuracy in projecting lactation records. J. Dairy Sci. 63:984–988.

Iloeje, M.U., T.R. Rounsaville, R.E. McDowell, G.R. Wiggans, and L.D. Van Vleck. 1980. Age-season adjustment factors for Alpine, LaMancha, Nubian, Saanen, and Toggenburg dairy goats. J. Dairy Sci. 63:1309–1316.

Grossman, M., and G.R. Wiggans. 1980. Dairy goat lactation records and potential for buck evaluation. J. Dairy Sci. 63:1925–1937.

Norman, H.D., B.G. Cassell , R.E. Pearson, and G.R. Wiggans. 1981. Relation of first lactation production and conformation to lifetime performance and profitability in Jerseys. J. Dairy Sci. 64:104–113.

Wiggans, G.R. 1981. Smoothed age-season adjustment factors for dairy goat lactation milk and fat records. J. Dairy Sci. 64:350–352.


Peer-Reviewed Scientific Publications (cont.)

Wiggans, G.R. 1981. Estimating lactation projection factors as joined straight lines. J. Dairy Sci. 64:703–705.

Wiggans, G.R. 1981. Methods to estimate milk and fat yields from a.m./p.m. plans. J. Dairy Sci. 64:1621–1624.

Iloeje, M.U., L.D. Van Vleck, and G.R. Wiggans. 1981. Components of variance for milk and fat yields in dairy goats. J. Dairy Sci. 64:2290–2293.

Uden, P., T.R. Rounsaville, G.R. Wiggans, and P.J. Van Soest. 1982. The measurement of liquid and solid digesta retention in ruminants, equines and rabbits given timothy (Phleum pratense) hay. British J. Nutr. 48:329–339.

Bar-Anan, R., M. Ron, and G.R. Wiggans. 1983. Associations among progeny tests of single or pooled lactations. J. Dairy Sci. 66:595–600.

Wiggans, G.R. 1983. Reliability and completeness of reporting of information on days open through the National Cooperative Dairy Herd Improvement Program. J. Dairy Sci. 66:1204–1208.

Ali, A.K.A., W.A. Mohammad, M. Grossman, R.D. Shanks, and G.R. Wiggans. 1983. Relationships among lactation and reproduction traits of dairy goats. J. Dairy Sci. 66:1926–1936.

Wiggans, G.R., F.N. Dickinson, G.J. King, and J.I. Weller. 1984. Genetic evaluation of dairy goat bucks for daughter milk and fat. J. Dairy Sci. 67:201–207.

Ron, M., R. Bar-Anan, and G.R. Wiggans. 1984. Factors affecting conception rate of Israeli Holstein cattle. J. Dairy Sci. 67:854–860.

Wiggans, G.R., and R.L. Powell. 1984. Increasing pedigree contribution to dairy sire evaluation. J. Dairy Sci. 67:893–896.

Weller, J.I., H.D. Norman, and G.R. Wiggans. 1984. Weighing sire evaluations on different parities to estimate overall merit. J. Dairy Sci. 67:1030–1037.

Weller, J.I., H.D. Norman, and G.R. Wiggans. 1984. Sire evaluations with parities as correlated traits and comparison with single-trait evaluations. J. Dairy Sci. 67:2010–2020.

Bar-Anan, R., M. Ron, and G.R. Wiggans. 1985. Associations among milk yield, yield persistency, conception, and culling of Israeli Holstein dairy cattle. J. Dairy Sci. 68:382–386.

Weller, J.I., H.D. Norman, and G.R. Wiggans. 1985. Estimation of variance of prediction error for best linear unbiased prediction models with relationships included. J. Dairy Sci. 68:930–938.

Bar-Anan, R., J.I. Weller, G.R. Wiggans, and K. Osterkorn. 1986. Prediction of annualized lactation yield from partial lactations. J. Dairy Sci. 69:1897–1903.

Wiggans, G.R. 1986. Revision of ancestor merit for Modified Contemporary Comparison sire evaluations. J. Dairy Sci. 69:1947–1957.

DeLorenzo, M.A., and G.R. Wiggans. 1986. Factors for estimating daily yield of milk, fat, and protein from a single milking for herds milked twice a day. J. Dairy Sci. 69:2386–2394.



Wiggans, G.R. 1986. Projection of protein yield to 305 days. J. Dairy Sci. 69:2908–2914.

Wiggans, G.R. 1986. Estimating daily yields of cows milked three times a day. J. Dairy Sci. 69:2935–2940.

Weller, J.I., G.R. Wiggans, and T.J. Lawlor Jr. 1987. Genetic evaluation of dairy goat does for milk and fat as an extension of buck evaluation. J. Dairy Sci. 70:681–686.

Gipson, T.A., M. Grossman, and G.R. Wiggans. 1987. Relation of registration with yield and termination of first lactation in dairy goats. J. Dairy Sci. 70:1710–1718.

Wiggans, G.R., and I. Misztal. 1987. Supercomputer for animal model evaluation of Ayrshire milk yield. J. Dairy Sci. 70:1906–1912.

Wiggans, G.R., and G.E. Shook. 1987. A lactation measure of somatic cell count. J. Dairy Sci. 70:2666–2672.

Wiggans, G.R., I. Misztal, and L.D. Van Vleck. 1988. Animal model evaluation of Ayrshire milk yield with all lactations, herd-sire interaction, and groups based on unknown parents. J. Dairy Sci. 71:1319–1329.

Wiggans, G.R., J.W.J. Van Dijk, and I. Misztal. 1988. Genetic evaluation of dairy goats for milk and fat yield with an animal model. J. Dairy Sci. 71:1330–1337.

Misztal, I., and G.R. Wiggans. 1988. Approximation of prediction error variance in large-scale animal models. J. Dairy Sci. 71(Suppl. 2):27–34.

Wiggans, G.R., I. Misztal, and L.D. Van Vleck. 1988. Implementation of an animal model for genetic evaluation of dairy cattle in the United States. J. Dairy Sci. 71(Suppl. 2):54–69.

Dong, M.C., L.D. Van Vleck, and G.R. Wiggans. 1988. Effect of relationships on estimation of variance components with an animal model and restricted maximum likelihood. J. Dairy Sci. 71:3047–3052.

Van Vleck, L.D., M.C. Dong, and G.R. Wiggans. 1988. Genetic (co)variances for milk and fat yield in California, New York, and Wisconsin for an animal model by restricted maximum likelihood. J. Dairy Sci. 71:3053–3060.

Wiggans, G.R. 1989. Animal model evaluation of dairy goats for milk, fat, and protein yields with crossbred animals included. J. Dairy Sci. 72:2411–2416.

Carabaño, M.J., L.D. Van Vleck, G.R. Wiggans, and R. Alenda. 1989. Estimation of genetic parameters for milk and fat yields of dairy cattle in Spain and the United States. J. Dairy Sci. 72(11):3013–3022.

Wiggans, G.R., and P.M. VanRaden. 1990. Animal model evaluation within herd linked to national evaluations. J. Dairy Sci. 73:1956–1963.

Powell, R.L., G.R. Wiggans, and R.D. Plowman. 1990. Evaluations of Holstein bulls and cows in Ecuador. J. Dairy Sci. 73:3330–3335.

Wiggans, G.R., and P.M. VanRaden. 1990. Including information from records in later herds in animal model evaluations. J. Dairy Sci. 73:3336–3339.

Powell, R.L., and G.R. Wiggans. 1991. Animal model evaluations for Mexican Holsteins. J. Dairy Sci. 74:1420–1427.



Misztal, I., T.J. Lawlor, T.H. Short, and G.R. Wiggans. 1991. Continuous genetic evaluation of Holsteins for type. J. Dairy Sci. 74:2001–2009.

Norman, H.D., R.L. Powell, and G.R. Wiggans. 1991. Comparison of genetic evaluations from animal model and Modified Contemporary Comparison. J. Dairy Sci. 74:2309–2316.

VanRaden, P.M., and G.R. Wiggans. 1991. Derivation, calculation, and use of national animal model information. J. Dairy Sci. 74:2737–2746.

Wiggans, G.R. 1991. National genetic improvement programs for dairy cattle in the United States. J. Anim. Sci. 69:3853–3860.

VanRaden, P.M., G.R. Wiggans, and C.A. Ernst. 1991. Expansion of projected lactation yield to stabilize genetic variance. J. Dairy Sci. 74:4344–4349.

Wiggans, G.R., and P.M. VanRaden. 1991. Method and effect of adjustment for heterogeneous variance. J. Dairy Sci. 74:4350–4357.

Da, Y., M. Grossman, I. Misztal, and G.R. Wiggans. 1992. Estimation of genetic parameters for somatic cell score in Holsteins. J. Dairy Sci. 75:2265–2271.

Banos, G., G.R. Wiggans, and J.A.B. Robinson. 1992. Comparison of methods to rank bulls across countries. J. Dairy Sci. 75:2560–2568.

Wiggans, G.R., P.M. VanRaden, and R.L. Powell. 1992. A method for combining United States and Canadian bull evaluations. J. Dairy Sci. 75:2834–2839.

Powell, R.L., G.R. Wiggans, and H.D Norman. 1993. Utilization of genetically elite Holstein cows. J. Dairy Sci. 76:1412–1420.

Becerril, C.M., C.J. Wilcox, T.J. Lawlor, G.R. Wiggans, and D.W. Webb. 1993. Effects of percentage of white coat color on Holstein production and reproduction in a subtropical environment. J. Dairy Sci. 76:2286–2291.

Schutz, M.M., P.M. VanRaden, and G.R. Wiggans. 1994. Genetic variation in lactation means of somatic cell scores for six breeds of dairy cattle. J. Dairy Sci. 77:284–293.

Powell, R.L., G.R. Wiggans, and H.D. Norman. 1994. Effect of sampling status and adjustment for heterogeneous variance on bias in bull evaluations. J. Dairy Sci. 77:883–890.

Wiggans, G.R. 1994. Meeting the needs at the national level for genetic evaluation and health monitoring. J. Dairy Sci. 77:1984–1991.

Becerril, C.M., C.J. Wilcox, G.R. Wiggans, and K.N. Sigmon. 1994. Transformation of measurements percentage of white coat color for Holsteins and estimation of heritability. J. Dairy Sci. 77:2651–2657.

Powell, R.L., G.R. Wiggans, and P.M VanRaden. 1994. Factors affecting calculation and use of conversion equations for genetic merit of dairy bulls. J. Dairy Sci. 77:2679–2686.

Norman, H.D., L.G. Waite, G.R. Wiggans, and L.M. Walton. 1994. Improving accuracy of the United States genetics database with a new editing system for dairy records. J. Dairy Sci. 77:3198–3208.



VanRaden, P.M., and G.R. Wiggans. 1994. Productive life evaluations: Calculation, accuracy, and economic value. J. Dairy Sci. 78:631–638. 1995.

Powell, R.L., and G.R. Wiggans. 1995. Holstein conversion equations based on population variances and a full-brother model. J. Dairy Sci. 78:1362–1368.

Wiggans, G.R., P.M. VanRaden, and J. Zuurbier. 1995. Calculation and use of inbreeding coefficients for genetic evaluation of United States dairy cattle. J. Dairy Sci. 78:1584–1590.

Schutz, M.M., P.M. VanRaden, G.R. Wiggans, and H.D. Norman. 1995. Standardization of lactation means of somatic cell scores for calculation of genetic evaluations. J. Dairy Sci. 78:1843–1854.

Weller, J.I., G.R. Wiggans, P.M. VanRaden, and M. Ron. Application of a canonical transformation to detection of quantitative trait loci with the aid of genetic markers in a multi-trait experiment. Theor. Appl. Genet. 92:998–1002. 1996.

Luo, M.F., G.R. Wiggans, and S.M. Hubbard. 1997. Variance component estimation and multitrait genetic evaluation for type traits of dairy goats. J. Dairy Sci. 80:594–600.

Lee, J.K., P.M. VanRaden, H.D. Norman, G.R. Wiggans, and T.R. Meinert. 1997. Relationship of yield during early lactation and days open during current lactation with 305-day yield. J. Dairy Sci. 80:771–776.

Wiggans, G.R., and M.E. Goddard. 1997. A computationally feasible test day model for genetic evaluation of yield traits in the United States. J. Dairy Sci. 80:1795–1800.

Gengler, N., G.R. Wiggans, J.R. Wright, H.D. Norman, and C.W. Wolfe. 1997. Estimation of (co)variance components for Jersey type traits using a repeatability model. J. Dairy Sci. 80:1801–1806.

Powell, R.L., P.M. VanRaden, and G.R. Wiggans. 1997.Relationship between United States and Canadian genetic evaluations of longevity and somatic cell score. J. Dairy Sci. 80:1807–1812.

Powell, R.L., G.R. Wiggans, and M. Sieber. 1997. Consistency of international genetic evaluations of Holstein bulls. J. Dairy Sci. 80:2177–2183.

Gengler, N., G.R. Wiggans, J.R. Wright, H.D. Norman, and C.W. Wolfe. 1997. Application of canonical transformation with missing values to multitrait evaluation of Jersey type. J. Dairy Sci. 80:2563–2571.

Weigel, K.A., T.J. Lawlor Jr., P.M. VanRaden, and G.R. Wiggans. 1998. Use of linear type and production data to supplement early predicted transmitting abilities for productive life. J. Dairy Sci. 81:2040–2044.

Powell, R., G.R. Wiggans, and H.D. Norman. 1998. Equity of cow status across states. J. Dairy Sci. 81:2518–2523.

Gengler, N., A. Tijani, G.R. Wiggans, C.P. Van Tassell, and J.C. Philpot. 1999. Estimation of (co)variances of test day yields for first lactation Holsteins in the United States. J. Dairy Sci. 82:225.e1–225.e14.

Tijani, A., G.R. Wiggans, C.P. Van Tassell, J.C. Philpot, and N. Gengler. 1999. Use of (co)variance functions to describe (co)variances for test day yield. J. Dairy Sci. 82:226.e1–226.e14.



Gengler, N., A. Tijani, G.R. Wiggans, and I. Misztal. 1999. Estimation of (co)variance function coefficients for test day yield with a expectation-maximization restricted maximum likelihood algorithm. J. Dairy Sci. 82:1849.e1–1849.e23.

Gengler, N., G.R. Wiggans, and J.R. Wright. 1999. Animal model genetic evaluations of type traits for five dairy cattle breeds. J. Dairy Sci. 82:1350.e1–1350.e22.

Van Tassell, C.P., G.R. Wiggans, and H.D. Norman. 1999. Method R estimates of heritability for milk, fat, and protein yields of United States dairy cattle. J. Dairy Sci. 82:2231–2237.

Da, Y., P.M. VanRaden, M. Ron, J.E. Beever, A.A. Paszek, J. Song, G.R. Wiggans, R. Ma, J.I. Weller, and H.A. Lewin. 1999. Standardization and conversion of marker polymorphism measures. Anim. Biotech. 10:25–35.

Heyen, D.W., J.I. Weller, M. Ron, M. Band, J.E. Beever, E. Feldmesser, Y. Da, G.R. Wiggans, P.M. VanRaden, and H.A. Lewin. 1999. A genome scan for QTL influencing milk production and health traits in dairy cattle. Physiol. Genomics 1:165–175.

Gengler, N., A. Tijani, and G.R. Wiggans. 2000. Use of sequential estimation of regressions and effects on regressions to solve large multitrait test-day models. J. Dairy Sci. 83:369.e1–369.e18.

Norman, H.D., R.H. Miller, J.R. Wright, and G.R. Wiggans. 2000. Herd and state means for somatic cell count from Dairy Herd Improvement. J. Dairy Sci. 83:2782–2788.

Gengler, N., A. Tijani, G.R. Wiggans, and J.C. Philpot. 2001. Estimation of (co)variance functions for test-day yields during first and second lactations in the United States. J. Dairy Sci.84:542.e1–542.e29.

Wiggans, G.R., and S.M. Hubbard. 2001. Genetic evaluation of yield and type traits of dairy goats in the United States. J. Dairy Sci. (E. Suppl.):E69–E73.

Gengler, N., T. Dusseldorf, G.R. Wiggans, J.R. Wright, and T. Druet. 2001. Heterogeneity of (co)variance components for Jersey type traits. J. Dairy Sci. 84:1772.e1–1772.e17.

Banos, G., G.R. Wiggans, and R.L. Powell. 2001. Impact of paternity errors in cow identification on genetic evaluations and international comparisons. J. Dairy Sci. 84:2523–2529.

Bormann, J., G.R. Wiggans, J.C. Philpot, T. Druet, and N. Gengler. 2002. Estimating effects of permanent environment, lactation stage, age, and pregnancy on test-day yield. J. Dairy Sci. 85:263.e1–263.e21.

Wiggans, G.R., P.M. VanRaden, J. Bormann, J.C. Philpot, T. Druet, and N. Gengler. 2002. Deriving lactation yields from test-day yields adjusted for lactation stage, age, pregnancy, and herd test date. J. Dairy Sci. 85:264.31–264.e11.

Wiggans, G.R., I. Misztal, and C.P. Van Tassell. 2003. Calving ease (co)variance components for a sire-maternal grandsire evaluation model. J. Dairy Sci. 86:1845–1848.

Wiggans, G.R., P.M. VanRaden, and J.C. Philpot. 2003. Technical note: Detection and adjustment of abnormal test-day yields. J. Dairy Sci. 86:2721–2724.

Van Tassell, C.P., G.R. Wiggans, and I. Misztal. 2003. Implementation of a sire-maternal grandsire model for evaluation of calving ease in the United States. J. Dairy Sci. 86:3366–3373.



Bormann, J., G.R. Wiggans, T. Druet, and N. Gengler. 2003. Within-herd effects of age at test day and lactation stage on test-day yields. J. Dairy Sci. 86:3765–3774.

Gengler, N., G.R. Wiggans, and A. Gillon. 2004. Estimated heterogeneity of phenotypic variance of test-day yield with a structural variance model. J. Dairy Sci. 87:1908–1916.

VanRaden, P.M., A.H. Sanders, M.E. Tooker, R.H. Miller, H.D. Norman, M.T. Kuhn, and G.R. Wiggans. 2004. Development of a national genetic evaluation for cow fertility. J. Dairy Sci. 87:2285–2292.

Miller, R.H., H.D. Norman, G.R. Wiggans, and J.R. Wright. 2004. Relationship of test-day somatic cell score with test-day and lactation milk yields. J. Dairy Sci. 87:2299–2306.

Wiggans, G.R., N. Gengler, and J.R. Wright. 2004. Type trait (co)variance components for five dairy breeds. J. Dairy Sci. 87:2324–2330.

Cole, J.B., R.C. Goodling Jr., G.R. Wiggans, and P.M. VanRaden. 2005. Genetic evaluation of calving ease for Brown Swiss, Jersey, and Holstein bulls from purebred and crossbred calvings. J. Dairy Sci. 88:1529–1539.

Wiggans, G.R., and R.C. Goodling Jr. 2005. Accounting for pregnancy diagnosis in predicting days open. J. Dairy Sci. 88:1873–1877.

Gengler, N., G.R. Wiggans, and A. Gillon. 2005. Adjustment for heterogeneous covariance due to herd milk yield by transformation of test-day random regressions. J. Dairy Sci. 88:2981–2990.

Gengler, N., G.R. Wiggans, L.L.M. Thornton, J.R. Wright, and T. Druet. 2006. Accounting for heterogeneous variances in multitrait evaluation of Jersey type traits. J. Dairy Sci. 89:3143–3151.

Wiggans, G.R., L.L.M. Thornton, R.R. Neitzel, and N. Gengler. 2006. Genetic parameters and evaluation of rear legs (rear view) for Brown Swiss and Guernseys. J. Dairy Sci. 89:4895–4900.

Kuhn, M.T., J.L. Hutchison, and G.R. Wiggans. 2006. Characterization of Holstein heifer fertility in the United States. J. Dairy Sci. 89:4907–4920.

Wiggans, G.R., L.L.M. Thornton, R.R. Neitzel, and N. Gengler. 2007. Short communication: Genetic evaluation of milking speed for Brown Swiss dairy cattle in the United States. J. Dairy Sci. 90:1021–1023.

Paape, M.J., G.R. Wiggans, D.D. Bannerman, D.L. Thomas, A.H. Sanders, A. Contreras, P. Moroni, and R.H. Miller. 2007. Monitoring goat and sheep milk somatic cell counts. Small Rumin. Res. 68:114–125.

VanRaden, P.M., M.E. Tooker, J.B. Cole, G.R. Wiggans, and J.H. Megonigal Jr. 2007. Genetic evaluations for mixed-breed populations. J. Dairy Sci. 90:2434–2441.Cole, J.B., G.R. Wiggans, and P.M. VanRaden. 2007. Genetic evaluation of stillbirth in United States Holsteins using a sire-maternal grandsire threshold model. J. Dairy Sci. 90:2480–2488.

Cole, J.B., G.R. Wiggans, P.M. VanRaden, and R.H. Miller. 2007. Stillbirth (co)variance components for a sire-maternal grandsire threshold model and development of a calving ability index for sire selection. J. Dairy Sci. 90:2489–2496.

Wiggans, G.R., J.B. Cole, and L.L.M. Thornton. 2008. Multiparity evaluation of calving ease and stillbirth with separate genetic effects by parity. J. Dairy Sci. 91:3173–3178.



Wiggans, G.R., S. Tsuruta, and I. Misztal. 2008. Technical note: Adaptation of an animal-model method for approximation of reliabilities to a sire-maternal grandsire model. J. Dairy Sci. 91:4058-4061.

VanRaden, P.M., C.P. Van Tassell, G.R. Wiggans, T.S. Sonstegard, R.D. Schnabel, J.F. Taylor, and F.S. Schenkel. 2009. Invited review: Reliability of genomic predictions for North American Holstein bulls. J. Dairy Sci. 92:16–24.

Cole, J.B., P.M. VanRaden, J.R. O’Connell, C.P. Van Tassell, T.S. Sonstegard, R.D. Schnabel, J.F. Taylor, and G.R. Wiggans. 2009. Distribution and location of genetic effects for dairy traits. J. Dairy Sci. 92:2931–2946.

Wiggans, G.R., T.S. Sonstegard, P.M. VanRaden, L.K. Matukumalli, R.D. Schnabel, J.F. Taylor, F.S. Schenkel, and C.P. Van Tassell. 2009. Selection of single-nucleotide polymorphisms and quality of genotypes used in genomic evaluation of dairy cattle in the United States and Canada. J. Dairy Sci. 92:3431–3436.

Montaldo, H.H., M. Valencia-Posadas, G.R. Wiggans, L. Shepard, and J.A. Torres-Vazquez. 2010. Short communication: Genetic and environmental relationships between milk yield and kidding interval in dairy goats. J. Dairy Sci. 93:370–372. Weigel, K.A., C.P. Van Tassell, J.R. O’Connell, P.M. VanRaden, and G.R. Wiggans. 2010. Prediction of unobserved single nucleotide polymorphism genotypes of Jersey cattle using reference panels and population-based imputation algorithms. J. Dairy Sci. 93:2229–2238. Wiggans, G.R., VanRaden, P.M., Bacheller, L.R., Tooker, M.E., Hutchison, J.L., Cooper, T.A., and Sonstegard, T.S. 2010. Selection and management of DNA markers for use in genomic evaluation. J. Dairy Sci. 93:2287–2292.

VanRaden, P.M., J.R. O’Connell, G.R. Wiggans, and K.A. Weigel. 2011. Genomic evaluations with many more genotypes. Genet. Sel. Evol. 43:10.

Aguilar, I., I. Misztal, S. Tsuruta, G.R. Wiggans, and T.J. Lawlor. 2011. Multiple trait genomic evaluation of conception rate in Holsteins. J. Dairy Sci. 94:2621–2624.

Wiggans, G.R., P.M. VanRaden, and T.A. Cooper. 2011. The genomic evaluation system in the United States: Past, present, future. J. Dairy Sci. 94:3202–3211.

Cole, J.B., G.R. Wiggans, L. Ma, T.S. Sonstegard, T.J. Lawlor, B.A. Crooker, C.P. Van Tassell, J. Yang, S. Wang, L.K. Matukumalli, and Y. Da. 2011. Genome-wide association analysis of thirty one production, health, reproduction and body conformation traits in contemporary U.S. Holstein cows. BMC Genomics 12:408.

Daetwyler, H.D., G.R. Wiggans, B.J. Hayes, J.A. Woolliams, and M.E. Goddard. 2011. Imputation of missing genotypes from sparse to high density using long-range phasing. Genetics 189:317–327.

VanRaden, P.M., K.M. Olson, G.R. Wiggans, J.B. Cole, and M.E. Tooker. 2011. Genomic inbreeding and relationships among Holsteins, Jerseys, and Brown Swiss. J. Dairy Sci. 94:5673–5680.

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, and J.B. Cole. 2011. Technical note: Adjustment of traditional cow evaluations to improve accuracy of genomic predictions. J. Dairy Sci. 94:6188–6193.

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, K.M. Olson, and M.E Tooker. 2012. Use of the Illumina Bovine3K BeadChip in dairy genomic evaluation. J. Dairy Sci. 95:1552–1558.



Boichard, D., H. Chung, R. Dassonneville, X. David, A. Eggen, S. Fritz, K.J. Gietzen, B.J. Hayes, C.T. Lawley, T.S. Sonstegard, C.P. Van Tassell, P.M. VanRaden, K.A. Viaud-Martinez, and G.R. Wiggans. 2012. Design of a bovine low-density SNP array optimized for imputation. PLoS ONE 7:e34130.

Garc ía-Peniche, T.B., H.H. Montaldo, M. Valencia-Posadas, G.R. Wiggans, S.M. Hubbard, J.A. Torres-Vázquez, and L. Shepard. 2012. Breed differences over time and heritability estimates for production and reproduction traits of dairy goats in the United States. J. Dairy Sci. 95:2707–2717.

Wiggans, G.R., P.M. VanRaden, and T.A. Cooper 2012. Technical note: Adjustment of all cow evaluations for yield traits to be comparable with bull evaluations. J. Dairy Sci. 95:3444–3447.

Hou, Y., D.M. Bickhart, M.L. Hvinden, C. Li, J. Song, D.A. Boichard, S. Fritz, A. Eggen, S. DeNise, G.R. Wiggans, T.S. Sonstegard, C.P. Van Tassell, and G.E. Liu. 2012. Fine mapping of copy number variations on two cattle genomes assembles using high density SNP array. BMC Genomics 13:376.

McClure, M., T. Sonstegard, G.R. Wiggans, and C.P. Van Tassell. 2012. Imputation of microsatellite alleles from dense SNP genotypes for parental verification. Frontiers Livest. Genomics 3:140.

Ma, L., G.R. Wiggans, S. Wang, T.S. Sonstegard, J. Yang, B.A. Crooker, J.B. Cole, C.P. Van Tassell, T.J. Lawlor, and Y. Da. 2012. Effect of sample stratification on dairy GWAS results. BMC Genomics 13:536.

VanRaden, P.M., D.J. Null, M. Sargolzaei, G.R. Wiggans, M.E. Tooker, J.B. Cole, T.S. Sonstegard, E.E. Connor, M. Winters, J.B.C.H.M. van Kaam, A. Valentini, B.J. Van Doormaal, M.A. Faust, and G.A. Doak. 2013. Genomic imputation and evaluation using high density Holstein genotypes. J. Dairy Sci. 96:668–678.

Wiggans, G.R., T.A. Cooper, C.P. Van Tassell, T.S. Sonstegard, and E.B. Simpson. 2013. Technical note: Characteristics and use of the Illumina BovineLD and GeneSeek Genomic Profiler low-density bead chips for genomic evaluation. J. Dairy Sci. 96:1258–1263.

VanRaden, P.M., T.A. Cooper, G.R. Wiggans, J.R. O’Connell, and L.R. Bacheller. 2013. Confirmation and discovery of maternal grandsires and great-grandsires in dairy cattle. J. Dairy Sci. 96:1874–1879.

McClure, M., E. Kim, D. Bickhart, D. Null, T. Cooper, J. Cole, G. Wiggans, P. Ajmone-Marsan, L. Colli, E. Santus, G.E. Liu, S. Schroeder, L. Matukumalli, C. Van Tassell, and T. Sonstegard. 2013. Fine mapping for Weaver Syndrome in Brown Swiss cattle and the identification of 41 concordant mutations across NRCAM, PNPLA8 and CTTNBP2. PLoS ONE 8:e59251.

Wright, J.R., G.R. Wiggans, C.J. Muenzenberger, and R.R. Neitzel. 2013. Short communication: Genetic evaluation of mobility for Brown Swiss dairy cattle. J. Dairy Sci. 96:2657–2660.

Cooper, T.A., G.R. Wiggans, and P.M. VanRaden. 2013. Short communication: Relationship of call rate and accuracy of single nucleotide polymorphism genotypes in dairy cattle. J. Dairy Sci. 96:3336–3339.

Weller, J.I., P.M. VanRaden, and G.R. Wiggans. 2013. Application of a posteriori granddaughter and modified granddaughter designs to determine Holstein haplotype effects. J. Dairy Sci. 96:5376–5387.



McClure, M.C., T.S. Sonstegard, G.R. Wiggans, A.L. Van Eenennaam, K.L. Weber, C.T. Penedo, D.P. Berry, J. Flynn, J.F. Garcia, A.S. Carmo, L.C.A. Regitano, M. Albuquerque, M.V.G.B. Silva, M.A. Machado, M. Coffey, K. Moore, M-Y. Boscher, L. Genestout, R. Mazza, J.F. Taylor, R.D. Schnabel, B. Simpson, E. Marques, J.C. McEwan, A. Cromie, L.L. Coutinho, L.A. Kuehn, J.W. Keele, E.K. Piper, J. Cook, R. Williams, Bovine HapMap Consortium, and C.P. Van Tassell. 2013. Imputation of microsatellite alleles from dense SNP genotypes for parentage verification across multiple Bos taurus and Bos indicus breeds. Front. Genet. 4:176.

McClure, M.C., D. Bickhart, D. Null, P. VanRaden, L. Xu, G. Wiggans, G. Liu, S. Schroeder, J. Glasscock, J. Armstrong, J.B. Cole, C.P. Van Tassell, and T.S. Sonstegard. 2014. Bovine exome sequence analysis and targeted SNP genotyping of recessive fertility defects BH1, HH2, and HH3 reveal a putative causative mutation in SMC2 for HH3. PLoS ONE 9:e92769.

Weller, J.I., J.B. Cole, P.M. VanRaden, and G.R. Wiggans. 2014. Application of the a posteriori granddaughter design to the Holstein genome. Animal 8:511–519.

Cooper, T.A., G.R. Wiggans, D.J. Null, J.L. Hutchison, and J.B. Cole. 2014. Genomic evaluation, breed identification, and discovery of a haplotype affecting fertility for Ayrshire dairy cattle. J. Dairy Sci. 97:3878–3882.

Wiggans, G.R., P.M. VanRaden, and T.A. Cooper. 2015. Technical note: Rapid calculation of genomic evaluations for new animals. J. Dairy Sci. 98:2039–2042.

Cooper, T.A., G.R. Wiggans, and P.M. VanRaden. 2015. Short communication: Analysis of genomic predictor population for Holstein dairy cattle in the US—Effects of sex and age. J. Dairy Sci. 98:2785–2788.

García-Ruiz, A., F.J. Ruiz-Lopez, G.R. Wiggans, C.P. Van Tassell, and H.H. Montaldo. 2015. Effect of reference population size and available ancestor genotypes on imputation of Mexican Holstein genotypes. J. Dairy Sci. 98:3478–3484.

Wiggans, G.R., G. Su, T.A. Cooper, U.S. Nielsen, G.P. Aamand, B. Buldgrandtsen, M.S. Lund, and P.M. VanRaden. 2015. Short communication: Improving accuracy of Jersey genomic evaluations in the United States and Denmark by sharing reference population bulls. J. Dairy Sci. 98:3508–3513.

Kim, E-S., T.S. Sonstegard, C.P. Van Tassell, G.R. Wiggans, and M.F. Rothschild. 2015. The relationship between runs of homozygosity and inbreeding in Jersey cattle under selection. PLoS ONE 10:e0129967.

Ma, L., J.R. O’Connell, P.M. VanRaden, B. Shen, A. Padhi, C. Sun, D.M. Bickhart, J.B. Cole, D.J. Null, G.E. Liu, Y. Da, and G.R. Wiggans. 2015. Cattle sex-specific recombination and genetic control from a large pedigree analysis. PLoS Genet. 11:e1005387.

Su, G., P. Ma, U.S. Nielsen, G.P. Aamand, G.R. Wiggans, B. Guldbrandtsen, and M.S. Lund. 2016. Sharing reference data and including cows in reference population improve genomic predictions in Danish Jersey. Animal 10:1067–1075.

Chesnais, J., T.A. Cooper, G.R. Wiggans, M. Sargolzaei, J. Pryce, and F. Miglior. 2016. Using genomics to enhance selection of novel traits in North American dairy cattle. J. Dairy Sci. 99:2413–2497.

Cooper, T.A., S.A.E. Eaglen, G.R. Wiggans, J. Jenko, H.J. Huson, D.M. Morrice, M. Bichard, W.G. de L. Luff, and J.A. Woolliams. 2016. Genomic evaluation, breed identification, and population structure of Guernsey cattle in North America, Great Britain, and the Isle of Guernsey. J. Dairy Sci. 99:5508–5515.



Wiggans, G.R., T.A. Cooper, P.M. VanRaden, C.P. Van Tassell, D.M. Bickhart, and T.S. Sonstegard. 2016. Increasing the number of single nucleotide polymorphisms used in genomic evaluation of dairy cattle. J. Dairy Sci. 99:4504–4511.

Petrini, J., L.H.S. Iung, M.A.P. Rodriguez, M. Salvian, F. Pértille, G.A. Rovadoscki, L.D. Cassoli, L.L. Coutinho, P.F. Machado, G.R. Wiggans, and G.B. Mourão. 2016. Genetic parameters for milk fatty acids, milk yield and quality traits of a Holstein cattle population reared under tropical conditions. J. Anim. Breed. Genet. 133:(in press).

García-Ruiz, A., J.B. Cole, P.M. VanRaden, G.R. Wiggans, F.J. Ruiz-López, and C.P. Van Tassell. 2016. Changes in genetic selection differentials and generation intervals in US Holstein dairy cattle as a result of genomic selection. Proc. Natl. Acad. Sci. U.S.A. 113:(in press).

Conference Proceedings

Wiggans, G.R. 1982. Use of dairy goat records in selection. Proc. 3rd Inter. Conf. Goat Prod. & Disease, pp. 23–25.

Wiggans, G.R. 1982. Sire evaluation of dairy goats. Research for Small Farms: Proc. Special Symp. H.W. Kerr Jr. and L. Knutson (ed.). USDA, ARS, Misc. Publ. No. 1422, pp. 211–214.

Dickinson, F.N., G.R. Wiggans, and C.A. Ernst. 1985. Importance of genetic improvement in market development. Proc. 11th Annu. CA Dairy Goat Day, pp. 1–15. (Also reprinted in UC Davis Dairy Goat Res. Fac. Newsltr., Fall 1986, and Dairy Goat J. 65(1):18–20, 33, 1987.)

Wiggans, G.R. 1989. Changes in U.S.A. cow and sire evaluation animal model. Brit. Cattle Breeders Club Winter Conf. 1989 Digest 44:11–17.

Wiggans, G.R., and P.M VanRaden. 1990. Genetic evaluation of dairy cattle using information from all relatives. Conf. on Large Scale Analysis and Modeling, IBM 3090 Supercomputing, Div. 3, No. 10, pp. 215–237.

Wiggans, G.R. 1990. Breeding value prediction with the animal model. Proc. 4th World Cong. Genet. Appl. Livest. Prod. XIII:355–356.

Wiggans, G.R. 1990. Introduction to the session. Subject C, milk production; session 4, genetic evaluation for the 21st century. Proc. 23rd Inter. Dairy Congr., Dairying in a Changing World 1:607–608.

Ricordeau, G., G.R. Wiggans, J.M. Serradilla, B.U. Khan, G.F. Sanchez, A.P. Mavrogenis, R.K. Misra, and E.J. Manfredi. 1992. Breeding plans for milk and meat production. Pre-Conference Proc., Invited Papers, V Inter. Conf. on Goats, Vol. II, Part I, pp. 85–99. Indian Counc. Agric. Res., New Delhi, India.

Wiggans, G.R., and P.M. VanRaden. 1993. Flow of information for genetic evaluation of yield traits. Proc. Symp. Continuous Genetic Eval. Dairy Cattle. I. Misztal (ed.). pp. 19–28. Dept. Anim. Sci., Univ. of IL, Urbana, IL.

Schutz, M.M., P.M. VanRaden, and G.R. Wiggans. 1994. Recent improvements in the USDA-DHIA genetic evaluation system for dairy cattle. New Uses for DHIA Data, pp. 45–52. Natl. DHI Assoc., Columbus, OH.

Wiggans, G.R., S.M. Hubbard, and J.R. Wright. 1994.Genetic evaluation of dairy goats in the United States for yield and type traits. Proc. 5th World Congr. Genet. Appl. Livest. Prod. 18:178–181.


Conference Proceedings (cont.)

Da, Y., M. Ron, A. Yanai, M. Band, R.E., Everts, D.W. Heyen, J.I. Weller, G.R. Wiggans, and H.A. Lewin. 1994. The Dairy Bull DNA Repository: A resource for mapping quantitative trait loci. Proc. 5th World Congr. Genet. Appl. Livest. Prod. 21:229–232.

Powell, R.L., and G.R. Wiggans. 1994. Impact of changes in U.S. evaluations on conversions and comparisons. Interbull Bull. 10, 2 pp.

Weller, J.I., A. Yanai, Y. Blank, E. Feldmesser, H. Lewin, G.R, Wiggans, and M. Ron. 1995. Detection of individual loci affecting somatic cell concentration in the US Holstein population with the aid of DNA microsatellites. Proc. 3rd. IDF Inter. Mastitis Sem. 2:8, 21–25. A. Saran and S. Soback (ed.). Natl. Mastitis Ref. Ctr., Kimron Vet. Inst., Bet Dagan, Israel.

Powell, R.L., G.R. Wiggans, and M. Sieber. 1996. Stability of international dairy bull evaluations. Interbull Bull. 14:3–7.

Gengler, N., G.R. Wiggans, J.R. Wright, H.D. Norman, and C.W. Wolfe. 1996. Application of a canonical transformation with missing values to multitrait analysis of U.S. Jersey type data. Interbull Bull. 14:143–148.

Wiggans, G.R., and M.E. Goddard. 1996. A computationally feasible test day model with separate first and later lactation genetic effects. Proc. New Zealand Soc. Anim. Prod. 56:19–21. (Also reprinted in Interbull Bull. 14:118–123, 1996.)

Gengler, N., A. Tijani, G.R. Wiggans, and, J.C. Philpot. 1997. Estimation of (co)variance components of test day yields for U.S. Holsteins. Interbull Bull. 16:53–58.

Van Tassell, C.P., G.R. Wiggans, H.D. Norman, and R.L. Powell. 1997. Estimation of heritability of yield of U.S. dairy cattle. Interbull Bull. 16:104–107.

Schutz, M.M., and G.R. Wiggans. 1998. Current status of genetic evaluation of somatic cell scores for US dairy cattle. Proc. 6th World Congr. Genet. Appl. Livest. Prod. 25:15–19.

Ron, M., D.W. Heyen, J.I. Weller, M. Band, E. Feldmesser, H. Pasternak, Y. Da, G.R. Wiggans, P.M. VanRaden, E. Ezra, and H.A. Lewin. 1998. Detection and analysis of a locus affecting milk concentration in the US and Israeli dairy cattle populations. Proc. 6th World Congr. Genet. Appl. Livest. Prod. 26:422–425.

Bertrand, J.K., and G.R. Wiggans. 1998. Validation of data and review of results from genetic evaluation systems for US beef and dairy cattle. Proc. 6th World Congr. Genet. Appl. Livest. Prod. 27:425–432.

Wiggans, G.R. 1998. What’s changing in genetic evaluations ... data, model, dissemination. Proc. Natl. Dairy Genet. Workshop, pp. 47–53.

Miller, R.H., H.D. Norman, G.R. Wiggans, and J.R. Wright. 1999. National survey of herd average somatic cell counts on DHI test days. Proc. Natl. Mastitis Council Annu. Mtg., pp. 161–162.

Gengler, N., A. Tijani, and G.R. Wiggans. 1999. Iterative solution of random regression models by sequential estimation of regressions and effects on regressions. Interbull Bull. 20:93–102.

Gengler, N., A.Tijani, G.R. Wiggans, and J.C. Philpot. 1999. Estimation of (co)variance functions of test day yields in first and later lactations of United States Holstein cows. Interbull Bull. 22:69–73.



Wiggans, G.R. 1999. Genetic evaluations in the United States: Present method and proposed changes. Proc. 32nd Inter. Symp. Anim. Prod.: Advances in Technology, Accuracy and Management, pp. 19–31.

Gengler, N., T. Dusseldorf, G.R. Wiggans, J.R. Wright, and T. Druet. 2000. Multitrait genetic evaluation of Jersey type with integrated accounting for heterogeneous (co)variances. Interbull Bull. 25:108–122.

Gengler, N., T. Dusseldorf, G.R. Wiggans, J.R. Wright, and T Druet. 2001. Joint estimation of variances and effects in the US Jersey type evaluation system. Interbull Bull. 26:34–40.

Wiggans, G.R. 2001. Issues in defining a genetic evaluation model. Interbull Bull. 26:8–12.

Gengler, N., and G.R. Wiggans. 2001. Heterogeneity in (co)variance structures of test-day yields. Interbull Bull. 27:179–183.

Wiggans, G.R., and C.P. Van Tassell. 2002. Genetic resources for current and future development of Holstein-Friesian dairy cattle. Proc. 2000 Anim. Breed. and Anim. Genet. Resources, Sustainable Anim. Prod. Workshop 7:33–38. E. Groeneveld and P. Glodek (ed.). Fed. Agric. Res. Ctr., Mariensee, Germany.

Gengler, N., and G.R. Wiggans. 2002. Adjustment for heterogeneous genetic and non-genetic (co)variance structures in test-day models using a transformation on random regression effect regressors. Interbull Bull. 29:79–83.

Van Tassell, C.P., and G.R. Wiggans. 2002. Enhancing quality of dystocia data by integration into a national dairy cattle production database. Proc. 7th World Congr. Genet. Appl. Livest. Prod. 32:557–560.

Wiggans, G.R., C.P. Van Tassell, J.C. Philpot, and I. Misztal. 2002. Comparison of dystocia evaluations from sire and sire-maternal grandsire threshold models. Proc. 7th World Congr. Genet. Appl. Livest. Prod. 32:561–564.

Cole, J.B., G.R. Wiggans, and P.M. VanRaden. 2006. Genetic evaluation of stillbirth in United States Holsteins using a sire-maternal grandsire threshold model. Proc. 8th World Congr. Genet. Appl. Livest. Prod., Commun. 01-28.

Van Tassell, C.P., and G.R. Wiggans. 2006. Impact on calving ease evaluations of modifying or excluding data from herd years with abnormal distributions of scores. Proc. 8th World Congr. Genet. Appl. Livest. Prod., Commun. 01-88.

Wiggans, G.R., C.P. Van Tassell, J.B. Cole, and L.L.M. Thornton. 2006. Genetic correlations between first and later parity calving ease in a sire-maternal grandsire model. Proc. 8th World Congr. Genet. Appl. Livest. Prod., Commun. 01-92.

VanRaden, P.M., G.R. Wiggans, T.S. Sonstegard, and C.P. Van Tassell. 2008. Using genomic data to improve dairy cattle genetic evaluations. Proc. Natl. Swine Impr. Fed. Symp., 5 pp.

Miglior, F., G.R. Wiggans, M.A. Faust, and B.J. Van Doormaal. 2009. Impact of new on-farm technologies in dairy cattle breeding. ICAR Tech Ser. 13:213–214.

VanRaden, P.M., C.P. Van Tassell, G.R. Wiggans, T.S. Sonstegard, R.D. Schnabel, J.F. Taylor, and F. Schenkel. 2009. Genomic data and cooperation result in faster progress. ICAR Tech Ser. 13:341–346.



Wiggans, G.R., T.S. Sonstegard, P.M. VanRaden, L.K. Matukumalli, R.D. Schnabel, J.F. Taylor, J.P. Chesnais, F.S. Schenkel, and C.P. Van Tassell. 2009. Genomic evaluations in the United States and Canada: A collaboration. ICAR Tech Ser. 13:347–353.

Cole, J.B., P.M. VanRaden, J.R. O’Connell, C.P. Van Tassell, T.S. Sonstegard, R.D. Schnabel, J.F. Taylor, and G.R. Wiggans. 2009. Distribution and location of genetic effects for dairy traits. ICAR Tech Ser. 13:355–360.

Wiggans, G.R., and L.L.M. Thornton. 2009. Processing of data discrepancies for U.S. dairy cattle and effect on genetic evaluations. ICAR Tech Ser. 13:393–398.

Schenkel, F.S., M. Sargolzaei, G. Kistemaker, G.B. Jansen, P. Sullivan, B.J. Van Doormaal, P.M. VanRaden, and G.R. Wiggans. 2009. Reliability of genomic evaluation of Holstein cattle in Canada. Interbull Bull. 39:51–58.

VanRaden, P.M., G.R. Wiggans, C.P. Van Tassell, T.S. Sonstegard, and F. Schenkel. 2009. Benefits from cooperation in genomics. Interbull Bull. 39:67–72.

VanRaden, P.M., J.R. O’Connell, G.R. Wiggans, and K.A. Weigel. 2010. Combining different marker densities in genomic evaluation. Interbull Bull. 42:113–118. Cole, J.B., G.R. Wiggans, L. Ma, T.S. Sonstegard, B.A.Crooker, C.P. Van Tassell, J. Yang, L.K. Matukumalli, and Y. Da. 2010. High resolution QTL maps of 31 traits in contemporary U.S. Holstein cows. Proc. 9th World Congr. Genet. Appl. Livest. Prod., Commun. 464.

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, and M.V. Silva. 2010. Increased reliability of genetic evaluations for dairy cattle in the United States from use of genomic information. Proc. 9th World Congr. Genet. Appl. Livest. Prod., Commun. 476.

Daetwyler, H.D., G.R. Wiggans, B.J. Hayes, J.A. Woolliams, and M.E. Goddard. 2010. Imputation of missising genotypes from sparse to high density using long-range phasing. Proc. 9th World Congr. Genet. Appl. Livest. Prod., Commun. 539.

Weigel, K.A., G. de los Campos, A.I. Vazquez, C.P. Van Tassell, G.J.M. Rosa, D. Gianola, J.R. O’Connell, P.M. VanRaden, and G.R. Wiggans. 2010. Genomic selection and its effects on dairy cattle breeding programs. Proc. 9th World Congr. Genet. Appl. Livest. Prod., Commun. 119.

Wiggans, G.R., and T.A. Cooper. 2010. Genomic evaluations: Past, present, future. Proc. Dairy Cattle Reproduction Conf., pp. 45-52.

Wiggans, G.R., and S.P Miller. 2011. SNP panels/imputation. Interbull Bull. 43, 4 pp.

Wiggans, G.R., P.M. VanRaden, and T.A. Cooper. 2011. Dairy cattle genomics evaluation program update. Proc. Natl. Breeders Roundtable, pp. 31–41.

Wiggans, G.R., P.M. VanRaden, and T.A Cooper. 2011. Dairy genomics in application. Proc. Minnesota Dairy Health Conf., pp. 29–38.

Wiggans, G.R., and S.P. Miller. 2011. SNP panels/imputation. Interbull Bull. 43, 4 pp.

Su, G., U.S. Nielsen, G. Wiggans, G.P. Aamand, B, Guldbrandtsen, and M.S. Lund. 2014. Improving genomic prediction for Danish Jersey using a joint Danish-US reference population. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 060.Conference Proceedings (cont.)


Spurlock, D.M., R.J. Tempelman, K.A. Weigel, L.E. Armentano, G.R. Wiggans, R.F. Veerkamp, Y. de Haas, M.P. Coffey, E.E. Connor, M.D. Hanigan, C. Staples, and M.J. VandeHaar. 2014. Genetic architecture and biological basis of feed efficiency in dairy cattle. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 287.

Wiggans, G.R., T.A. Cooper, D.J. Null, and P.M. VanRaden. 2014. Increasing the number of single nucleotide polymorphisms used in genomic evaluations of dairy cattle. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 301.

García-Ruiz, A., F.J. Ruiz-Lopez, G.R. Wiggans, C.P. Van Tassell, and H.H. Montaldo. 2014. Impact of adding foreign genomic information on Mexican Holstein imputation. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 479.

Sargolzaei, M., L.R. Schaeffer, J.P. Chesnais, G. Kistemaker, G.R. Wiggans, and F.S. Schenkel. 2014. Approximation of reliability of direct genomic breeding values. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 485.

Cooper, T.A., G.R. Wiggans, and P.M. VanRaden. 2014. Including cow information in genomic prediction of Holstein dairy cattle in the US. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 803.

Wiggans, G.R., and J.I. Weller. 2015. Revisiting the “a posteriori” granddaughter design. Interbull Bull. 49:36–42.

Technical Reports

Wiggans, G.R. 1975. Study of AM-PM records for use in sire evaluation. Genet. Res. Rep. to Eastern AI Coop. Inc., pp. 31–34.

Wiggans, G.R., and R.L. Powell. 1980. Projection factors for milk and fat lactation records. USDA DHI Ltr. 56(1):1–15.

Wiggans, G.R., and, M. Grossman. 1980. Computing lactation records from sample-day production. USDA DHI Ltr. 56(4):1–6.

Wiggans, G.R., and M. Grossman. 1980. Adjusting records from three-times-a-day to two-times-a- day milking basis. USDA DHI Ltr. 56(4):7–8.

Grossman, M., and G.R. Wiggans. 1980. Average predicted differences from winter 1979 through summer 1980 sire summaries. USDA DHI Ltr. 56(6):1–3.

Powell, R.L., and G.R. Wiggans. 1980. Requirements for calculation of a sire summary. USDA DHI Ltr. 56(6):4–6.

Wiggans, G.R. 1980. Errors, reasons for termination, and types of test for 305-day lactation records received for the summer 1978 through winter 1980 sire summaries. USDA DHI Ltr. 56(6):7–13.

Powell, R.L., and G.R. Wiggans. 1981. Averages of predicted differences by summary date, breed, and bull status. USDA DHI Ltr. 57(1):5–9.

Wiggans, G.R. 1981. Changes in the AIPL genetic evaluation procedures. USDA DHI Ltr. 57(1):10–11.

Technical Reports (cont.)


Wiggans, G.R. 1981. USDA summary of 1980 U.S. cow herd averages. USDA DHI Ltr. 57(4):1–22.

Wiggans, G.R. 1981. USDA summary of 1980 goat herd averages. USDA DHI Ltr. 57(4):23–26. (Also published in Dairy Goat J. 59(11):826–827, 1981.)

Cisneros, P.G., G.R. Wiggans, and G.J. King. 1981. USDA summary of 1980 Mexican cow herd averages. USDA DHI Ltr. 57(4):27–29.

Wiggans, G.R., and G.J. King. 1981. Error counts for 305-day lactation records, 1980. USDA DHI Ltr. 57(4):30–33.

Wiggans, G.R., and R.L. Powell. 1982. Changes in the AIPL genetic evaluation procedures. USDA DHI Ltr. 58(1):6–7.

King, G.J., and G.R. Wiggans. 1983. USDA summary of 1981 U.S. cow herd averages. USDA DHI Ltr. 59(1):1–18.

King, G.J., and G.R. Wiggans. 1983. USDA summary of 1981 goat herd averages. USDA DHI Ltr. 59(1):19–21. (Also appeared in Dairy Goat J. 61(7):582–583, 1983.)

Wiggans, G.R., and G.J. King. 1983. Counts of 305-day lactation records excluded from genetic evaluations for 1982. USDA DHI Ltr. 59(2):1–4.

King, G.J., and G.R. Wiggans. 1983. USDA summary of 1982 U.S. cow herd averages. USDA DHI Ltr. 59(5):1–21.

King, G.J., and G.R. Wiggans. 1983. USDA summary of 1982 U.S. goat herd averages. USDA DHI Ltr. 59(5):22–24.

Wiggans, G.R. 1983. Changes in the AIPL genetic evaluation procedures. USDA DHI Ltr. 59(5):25–26.

Wiggans, G.R., H.D. Norman, and R.L Powell. 1984. Changes in genetic evaluation procedures for January 1984. USDA DHI Ltr. 60(2):1–10.

Wiggans, G.R., and D.R. Ostrander. 1984. Counts of 305-day lactation records excluded from genetic evaluations for 1983. USDA DHI Ltr. 60(2):11–13.

Wiggans, G.R., and P.M VanRaden. 1990. Genetic evaluation of dairy cattle in the United States. CAASS [J. of Chinese Agric. Assoc. of Students and Scholars] 1:5–25.

Wiggans, G.R. 1993. Journal of Dairy Science 1992. J. Dairy Sci. 76:903–907.

Norman, H.D., and G.R. Wiggans. 1993.Effect of age and parity on genetic trend. AIPL Res. Rep. GT1(12-93).

Wiggans, G.R., P.M.VanRaden, and M.M. Schutz. 1994.Changes in USDA-DHIA genetic evaluations (January 1994). AIPL Res. Rep. CH1(1-94).

VanRaden, P.M., and G.R. Wiggans. 1994. Changes in USDA-DHIA genetic evaluations (July 1994). AIPL Res. Rep. CH2(7-94).

Technical Reports (cont.)


VanRaden, P.M., G.R. Wiggans, R.L. Powell, and H.D. Norman. 1995. Changes in USDA-DHIA genetic evaluations (January 1995). AIPL Res. Rep. CH3(1-95). (Also published as AChanges in USDA Genetic Evaluations for January 1995,@ Milking Shorthorn J. 76(2):24–25, 1995.)

VanRaden, P.M., R.L. Powell, G.R. Wiggans, and H.D. Norman. 1995. Changes in USDA-DHIA genetic evaluations (July 1995). AIPL Res. Rep. CH4(7-95).

VanRaden, P.M., R.L., Powell, G.R. Wiggans, and H.D. Norman. 1996. Changes in USDA-DHIA genetic evaluations (January 1996). AIPL Res. Rep. CH5(1-96).

VanRaden, P.M., H.D. Norman, R.L. Powell, and G.R. Wiggans. 1996. Changes in USDA-DHIA genetic evaluations (July 1996). AIPL Res. Rep. CH6(7-96).

VanRaden, P.M., G.R. Wiggans, H.D. Norman, and R.L. Powell. 1997. Changes in USDA-DHIA genetic evaluations (February 1997). AIPL Res. Rep. CH7(2-97).

Norman, H.D., R.L. Powell, G.R. Wiggans, and P.M. VanRaden. 1997. Changes in USDA-DHIA genetic evaluations (May 1997). AIPL Res. Rep. CH8(5-97).

Van Tassell, C.P., G.R. Wiggans, P.M. VanRaden, and H.D. Norman. 1997. Changes in USDA-DHIA genetic evaluations (August 1997). AIPL Res. Rep. CH9(8-97).

VanRaden, P.M., G.R. Wiggans, and L.M. Walton. 1998. Changes in USDA-DHIA genetic evaluations (February 1998). AIPL Res. Rep. CH10(2-98).

Wiggans, G.R., R.L. Powell, and H.D. Norman. 1998. Current and planned changes in USDA-DHIA genetic evaluations (May 1998). AIPL Res. Rep. CH11(6-98).

Norman, H.D., G.R. Wiggans, and R.L. Powell. 1998. Changes in USDA-DHIA genetic evaluations (November 1998). AIPL Res. Rep.CH12(11-98).

VanRaden, P.M., G.R. Wiggans, and C.P. Van Tassell. 1999. Changes in USDA-DHIA genetic evaluations (February 1999). AIPL Res. Rep. CH13(2-99)

VanRaden, P.M., R.L. Powell, and G.R. Wiggans, G.R. 1999.Current and planned changes in USDA-DHIA genetic evaluations (May 1999). AIPL Res. Rep. CH14(5-99).

Wiggans, G.R. 1999. Changes in USDA-DHIA genetic evaluations (November 1999). AIPL Res. Rep. CH15(11-99).

VanRaden, P.M., and G.R. Wiggans. 2001. Revised methods to compute multitrait productive life. AIPL Res. Rep. PL1(01-01).

VanRaden, P.M., and G.R. Wiggans. 2003. Methods used to compute multi-trait productive life. AIPL Res. Rep. PL2(11-03).

VanRaden, P.M., M.E. Tooker, G.R. Wiggans, J.B. Cole, and J.H. Megonigal Jr. 2007. All-breed evaluation. AIPL Res. Rep. AB1(4-07).

Norman, H.D., L.L.M. Thornton, and G.R. Wiggans. 2008. State and national standardized lactation averages by breed for cows calving in 2006. AIPL Res. Rep. K2-06(03-08).Technical Reports (cont.)


Cooper, T.A., M.E. Tooker, P.M. VanRaden, G.R. Wiggans, and J.B. Cole. 2010. Imputation of cow genotypes and adjustment of PTAs. AIPL Res. Rep. GENOMIC1(4-10).

Wiggans, G.R. 2012. Background on the development of a nonfunded cooperative agreement between USDA’s Agricultural Research Service (ARS) and the Council on Dairy Cattle Breeding (CDCB). AIPL Res. Rep. NFCA-CDCB1(06-12).

Wiggans, G.R., J.B. Cole, S.M. Hubbard, and T.S. Sonstegard. 2017. Genomic selection in dairy cattle: The USDA experience. Annu. Rev. Anim. Biosci. 5:(in press).

Book Chapters

Wiggans, G.R., and P.M. VanRaden. 1992. Genetic evaluation of dairy cattle using information from all relatives. Computer Assisted Modeling on the IBM 3090, the 1989 IBM Contest Prize Papers. Billingsley, K.R. (ed.). Vol. 2, Paper 22.0, pp. 677–708. The Baldwin Press, The Univ. of Georgia, Athens, GA.

Wiggans, G.R., and R.E. McDowell. 1993. Statistics and databanks in animal science. The Literature of Animal Science and Health. W.C. Olsen (ed.). Ch. 4, pp. 52–69. Cornell Univ. Press, Ithaca, NY.

Goddard, M.E., and G.R. Wiggans. 1999. Genetic improvement of dairy cattle. The Genetics of Cattle. R. Fries and A. Ruvinsky (ed.). Ch. 18, pp. 511–537. CABI Publ., Oxon, UK.

Wiggans, G.R., and N. Gengler. 2002. Genetic selection: Evaluation and methods. Encyclopedia of Dairy Sciences. H. Roginski, J.W. Fuquay, and P.F. Fox (ed.).Vol. 2, pp. 1207–1212. Acad. Press, London, UK.

Zeng, S.S., L. Zhang, G.R. Wiggans, J. Clay, R. LaCroix, J.Z. Wang, and T. Gipson. 2008. Current status of composition and somatic cell count in milk of goats enrolled in Dairy Herd Improvement Program in the United States. New Research on Livestock Science and Dairy Farming. P. Di Alberto and C. Costa. (ed.). pp. 129–144. Nova Sci. Publ., Hauppauge, NY.

Wiggans, G.R., and N. Gengler. 2011. Selection: Evaluation and methods. Encyclopedia of Dairy Sciences, 2nd ed. J.W. Fuquay, P.F. Fox, and P.L.H. McSweeney (ed.). Vol. 2, pp. 649–655. Acad. Press, San Diego, CA.

Ducrocq, V., and G. Wiggans. 2015. Genetic improvement of dairy cattle. The Genetics of Cattle, 2nd ed. D.J. Garrick and A. Ruvinsky (ed.). Ch. 15, pp. 371–396. CAB Inter., Wallingford, Oxfordshire, UK.

Extension Publications

Grossman, M., and G.R. Wiggans. 1981. Average predicted differences from sire summaries for winter, 1979, through summer, 1980. 1981 IL Dairy Rep.–Feeding Strategies for the ‘80s, pp. 31–32. Dept. Dairy Sci., Coop. Ext. Serv., Univ. of IL, Urbana.

Taylor, W.R., H.D. Norman, and G.R. Wiggans. 1983. New information makes sire summaries more useful. Western States Rep., Prod. Testing & Mgt. Info., USDA-DHIA Sire Summary, WREP-No. 2, pp. 1, 18.

Wiggans, G.R., M. Grossman, and M.R. Dentine. 1983. Genetic evaluations. Ext. Goat Handbook IV(3):1–5.

Wiggans, G.R. 1983. Adjustment factors for milk records. Ext. Goat Handbook IV(4):1–16.


Extension Publications (cont.)

Wiggans, G.R., and F.N. Dickinson. 1984. USDA-DHIA buck evaluations for milk and fat. Goat Ext. Handbook D-11:1–3.

Wiggans, G.R. 1985. Procedures for calculating lactation records. Natl. Coop. DHI Progr. Handbook, Fact Sheet G-1. 10 pp.

Wiggans, G.R., and F.N. Dickinson. 1985. Standardization of NCDHIP dairy cattle lactation records. Natl. Coop. DHI Progr. Handbook, Fact Sheet G-2. 7 pp.

Wiggans, G.R., and L.G. Waite. 1985. Editing lactation records for USDA-DHIA genetic evaluations. Natl. Coop. DHI Progr. Handbook, Fact Sheet H-9. 7 pp.

Wiggans, G.R., and D.R. Ostrander. 1985. Counts of 305-day lactation records eliminated from genetic evaluations for 1984. Natl. Coop. DHI Progr. Handbook, Fact Sheet H-10. 4 pp.

Wiggans, G.R. 1985. Codes for transfer of NCDHIP data. Natl. Coop. DHI Progr. Handbook, Fact Sheet H-11. 5 pp.

Wiggans, G.R., and S.M. Hubbard. 1985. USDA summary of 1985 cow herd averages. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-3. 4 pp.

Wiggans, G.R. 1985. National buck evaluations. Natl. Coop. DHI Progr. Handbook, Fact Sheet L-2. 4 pp.

Wiggans, G.R., and C.A. Ernst. 1988. NCDHIP participation as of January 1, 1988. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-1. 4 pp. (Also reprinted with updated data in 1989.)

Wiggans, G.R., and C.A. Ernst. 1988. USDA summary of 1987 herd averages. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-3. 4 pp. (Also reprinted with updated data in 1989.)

Wiggans, G.R., and C.A. Ernst. 1988. Dairy records processing center activity summary as of January 1, 1988. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-6. 4 pp. (Also reprinted with updated data in 1989.)

Wiggans, G.R., and P.M. VanRaden. 1989. USDA-DHIA animal model genetic evaluations. Natl. Coop. DHI Progr. Handbook, Fact Sheet H-2. 8 pp.

Wiggans, G.R. 1990. NCDHIP participation as of January 1, 1990. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-1. 5 pp. (Also reprinted with updated data, 1992–93, 1996, and as a web page, 1997–2001.)

Wiggans, G.R., and S.M. Hubbard. 1991. USDA summary of 1990 herd averages. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-3. 4 pp. (Also reprinted with updated data, 1994–95.)

Wiggans, G.R., and S.M. Hubbard. 1991. Dairy records processing center activity summary as of January 1, 1991. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-6. 7 pp. (Also reprinted with updated data, 1994–95.)

Wiggans, G.R. 1992. USDA summary of 1991 herd averages. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-3. 5 pp. (Also reprinted with updated data, 1993, 1996, and as a web page, 1997–2007.)

Wiggans, G.R. 1992. Dairy records processing center activity summary as of January 1, 1992. Natl. Coop. DHI Progr. Handbook, Fact Sheet K-6. 4 pp. (Also reprinted with updated data, 1993, 1996, and as a web page, 1997–2001.)


Industry Publications

Dickinson, F.N., and G.R. Wiggans. 1979. New projection factors for dairy goat lactation records. Dairy Goat J. 57(2):56–61.

Dickinson, F.N., H.D. Norman, B.G. Cassell, and G.R. Wiggans. 1979. The national dairy breeding research program at USDA. Holstein-Friesian World 76(17):33–37, 40.

Wiggans, G.R. 1980. How good is good enough? When choosing your bulls, select from among those ranking high in PD$. Dairy Herd Mgt. 17(4):10–18.

Grossman, M., and G.R. Wiggans. 1980. USDA study of dairy goat lactation records. Dairy Goat J. 58(9):3–4, 6–7.

Grossman, M., and G.R. Wiggans. 1980. USDA summary of goat herd averages, 1979–1980. Dairy Goat J. 58(11):890–891.

Wiggans, G.R., and R.L. Powell. 1981.If you could change the genetic base, how good would you want a bull with a PD of zero to be? Adv. Anim. Breeder 29(5):10–11.

Norman, H.D., and G.R. Wiggans. 1982.Would bull selection be easier if genetic base were updated? Hoard’s Dairyman 127:325, 417.

Wiggans, G.R., and F.N. Dickinson. 1983. Sire summary from USDA best guide for breeding. Dairy Goat J. 61(3):9–11. Wiggans, G.R., and F.N. Dickinson. 1983. USDA-DHIA Dairy Goat Buck Evaluations for Milk and Fat, Vol. 1, No. 1. Dairy Goat Journal, Scottsdale, AZ.

Wiggans, G.R., and F.N. Dickinson. 1983. First buck evaluations available for dairy goat breeders. Dairy Goat Guide 6(5):15–16.

Bar-Anan, R., A. Genizi, and G.R. Wiggans. 1983. Pre-lactations effects on lactation yields. Heker Umas 5:31–36. (In Hebrew.)

Wiggans, G.R., and F.N. Dickinson. 1984. USDA-DHIA Dairy Goat Buck Evaluations for Milk and Fat, Vol. 2. Dairy Goat Journal, Scottsdale, AZ. (Also published as introductory material for USDA-DHIA Dairy Goat Buck Evaluations for Milk and Butterfat: Third Sire Summary, United Caprine News, Rotan, TX, 1985)

Wiggans, G.R. 1984. Genetic evaluations for does: New research released. Dairy Goat Guide 7(10):20–22.

Ernst, C.A., and G.R. Wiggans. 1985. USDA summary of 1984 U.S. goat herd averages. Dairy Goat J. 63(12):882–883.

Wiggans, G.R. 1986. USDA summary of 1985 goat herd averages. Dairy Goat J. 64(8):55, 68.

Van Vleck, L.D., and G.R. Wiggans. 1988. The “animal model” is coming. Hoard’s Dairyman 133:711, 740. Wiggans, G.R. 1988. 1988 top 15% of bucks with 5 or more daughters. Dairy Goat J. 66(10):30–31.

Wiggans, G.R. 1989. Understanding the dairy goat model. United Caprine News 13(1):4.


Industry Publications (cont.)

Wiggans, G.R., and P.M. VanRaden. 1989. New USDA animal model evaluations of Red & Whites and Holsteins. Red Bloodlines May:6, 8. (Also reprinted as “New USDA animal model evaluations of Red & White Holsteins,” Holstein World 86(16):21–22, 1989.)

Wiggans, G.R. 1989. Red Bloodlines asks USDA about combined Red & White and Holstein animal model evaluations. Red Bloodlines July:6.

Powell, R.L., and G.R. Wiggans. 1989.Interpretation of bull evaluations in Ecuador (Interpretación de la evaluación de toros en el Ecuador). Holstein Ecuatoriano III(24):36–41.

Wiggans, G.R. 1990. How to interpret animal model evaluations: What lies behind the new animal model terms? Jersey J. 37(5):88.

Wiggans, G.R. 1990. Interpretation of USDA genetic evaluations? Red Bloodlines July:6.

Wiggans, G.R. 1990. 1990 genetic evaluations of dairy goats. Dairy Goat J. 68(8):520(44).

Wiggans, G.R., and P.M. VanRaden. 1991. Adjustment for heterogeneous variance. Dairy Goat J. 69(6):336.

Wiggans, G.R., and S.M. Hubbard. 1991. Genetic evaluations for yield and type traits. Dairy Goat J. 69(7):414.

Norman, H.D., G.R. Wiggans, P.M. VanRaden, and S.M. Hubbard. 1991. New adjustments for USDA genetic evaluations. Jersey J. 38(7):47–49. (Also published in Guernsey Breeders J. 160(7):14; Calif. Agribusiness Dairyman, Sept., pp. 10–11,)

Wiggans, G.R., P.M. VanRaden, R.L. Powell, and H.D. Norman. 1991. USDA adjusts for herd variance. Hoard’s Dairyman 136:673.

Wiggans, G.R., and P.M. VanRaden. 1991. Genetic evaluation of dairy cattle by an animal model. Forefronts 7(2):4–6.

Koerhuis, A., F. Van der Schans, R.L. Powell, and G.R. Wiggans. 1991.How good are the U.S. Holstein young sires sampled in other countries? Holstein World 88:2015–2017.

Hubbard, S.M., and G.R. Wiggans. 1997. Science update: Nature versus nurture: A formula for goats. Agric. Res. 45(1):23.

Wiggans, G.R., and S.M. Hubbard. 1999. Genetic evaluation of yield and conformation traits of dairy goats. Amer. Dairy Goat Assoc. News and Events, 2nd qtr., p. 11.

Cole, J.B., R.C. Goodling Jr., G.R. Wiggans, and P.M. VanRaden. 2006. Genetic calving ease study on crossbreeds. Jersey J. 53(3):83–84. (Also reprinted as a web page at TheDairySite.com, Dec.)

Rogers, G.W., C.P. Van Tassell, P.M. VanRaden, and G.R. Wiggans. 2008. Four ways genomic selection will change dairy cattle genetic improvement in the near future. Progressive Dairyman 22(8):14–17. 2008. (Also published as “Will genomic selection change the way sires are chosen, evaluated, sampled and marketed?,” Genetic Trends 60(3):6–8.)

VanRaden, P., G. Wiggans, T. Sonstegard, C. Van Tassell, and L. Walton. 2009. Genomic evaluations become official. All-Breeds Blog, Jan. 14.


Industry Publications (cont.)

Van Tassell, C.P., G.R. Wiggans, and T.S. Sonstegard. 2011. Enhancing genetic evaluations for Guernsey cattle in the United States from use of genomic information. 13th World Conference Proc., Guernsey World, May:48–50.

Cassell, B., and G. Wiggans. 2011. Adjustments make all cow PTAs similar to those on genomically tested cows. Holstein Association USA press release, Mar. 7. (Also published as “Adjustments in PTAs offer improved efficiency,” Progressive Dairyman 25(7):75–77; Cassell, B., “Cow PTAs to get more adjustments in April,” Hoard's Dairyman 156:222–223; Dairy Herd news source, “Adjustments to all cow PTA's coming next month,” Dairy Herd Network, Mar. 10; Holstein Association USA staff, “The ‘all-cows’ rescaling of yield trait PTAs will be implemented in April 2011,” Holstein Association USA press release, Mar. 11; and Holstein World online extra, Mar. 7.)

Abstracts

Wiggans, G.R., R.E. McDowell, and L.D. Van Vleck. 1976. Factors to convert incomplete production records to 305-day basis for tropical areas. J. Dairy Sci. 59(Suppl. 1):114.

Wiggans, G.R., and L.D. Van Vleck. 1977. Correlations between sire effects in herds with differing levels of concentrate feeding. J. Dairy Sci. 60(Suppl. 1):132.

Wiggans, G.R. 1978. Extending part records using last sample day production to predict remaining yield. J. Dairy Sci. 61(Suppl. 1):96.

Cassell, B.G., H.D. Norman, G.R. Wiggans, and R.E. Pearson. 1979. Prediction of lifetime performance traits from first lactation production and type in Jersey cows. J. Dairy Sci. 62(Suppl. 1):107–108.

Wiggans, G.R. 1979. Projection of partial lactation records. J. Dairy Sci. 62(Suppl. 1):165.

Cisneros, P.G., G.R. Wiggans, M.F. Rothschild, and F.N. Dickinson. 1980. Effects of sire, service sire, and their interaction on conception rate. J. Dairy Sci. 63(Suppl. 1):96.

Wiggans, G.R., G.J. King, and J.L. Majeskie. 1980. Factors to improve estimates of production during the early and last test intervals for dairy goat records. J. Dairy Sci. 63(Suppl. 1):111–112.

Grossman, M., and G.R. Wiggans. 1980. Dairy goat lactation records and potential for buck evaluation. J. Dairy Sci. 63(Suppl. 1):112–113.

Wiggans, G.R., and R.L. Powell. 1981. Increasing pedigree contribution to sire evaluation. J. Dairy Sci. 64(Suppl. 1):73.

Cisneros, P.G., G.R. Wiggans, and F.N. Dickinson. 1981. Factors affecting calving interval in Maryland Holstein herds. J. Dairy Sci. 64(Suppl. 1):82.

Weller, J.I., H.D. Norman, and G.R. Wiggans. 1983. Analysis of three lactations as correlated traits by mixed model methodology. J. Dairy Sci. 66(Suppl. 1):119.

Weller, J.I., H.D. Norman, and G.R. Wiggans. 1983. Weighting sire evaluations based on different lactations to estimate overall merit. J. Dairy Sci. 66(Suppl. 1):120.


Abstracts (cont.)

Wiggans, G.R., A. Genizi, and R. 1983. Bar-Anan Effects of days dry, days open, and gestation length on milk yield. J. Dairy Sci. 66(Suppl. 1):121–122.

Wiggans, G.R. 1983. Estimating daily yield for herds milked three times a day. J. Dairy Sci. 66 (Suppl. 1):137.

Powell, R.L., G.R. Wiggans, and H.D. Norman. 1984. Modified Contemporary Comparison sire evaluations by year of daughter calving. J. Dairy Sci. 67(Suppl. 1):187(P220).

Ernst, C.A., and G.R. Wiggans. 1985. Effect of days open on lactation records and development of adjustment factors. J. Dairy Sci. 68( Suppl. 1):211(P247).

Wiggans, G.R. 1985. Projection of protein yield to 305 days. J. Dairy Sci. 68(Suppl. 1):211(P248).

Powell, R.L., H.D. Norman, and G.R. Wiggans. 1985. Trends of breeding values of dairy sires and cows for milk yield since 1960. J. Dairy Sci. 68(Suppl. 1):221(P272).

Wiggans, G.R., and C.A. Ernst. 1986. Effects of days open on records in progress. J. Dairy Sci. 69(Suppl. 1):125 (P104).

Wiggans, G.R., and G.E. Shook. 1986. Computing a lactation measure for somatic cell count. J. Dairy Sci. 69 (Suppl. 1):127(P109).

Wiggans, G.R., and I. Misztal. 1987. Investigation of an animal model for national genetic evaluation of milk yield. J. Dairy Sci. 70(Suppl. 1):125(P64).

Gipson, T.A., M. Grossman, and G.R. Wiggans. 1987. Lactation curves for dairy goats by yield level. J. Dairy Sci. 70(Suppl. 1):153(P149).

Wiggans, G.R., and C.A. Ernst. 1987. Effect of genetic merit of sire for milk yield and herd yield level on reproductive traits. J. Dairy Sci. 70(Suppl. 1):232(P386).

Wiggans, G.R. 1988.Objetivos de mejoramiento genetico [Genetic goals for dairy cattle]. Libro de Resumenes, III Jornadas Nac. y I Panamer. Insem. Art. Biotec. Reprod., I Muestra Nac. Reprod. Bovinos Centr. I.A., I Curso Act. Reprod. Bovina, pp. 34–35.

Wiggans, G.R. 1988. Interaccion entre genotipos y ambiente en ganado lechero [Genotype by environment interactions in dairy cattle]. Libro de Resumenes, III Jornadas Nac. y I Panamer. Insem. Art. Biotec. Reprod., I Muestra Nac. Reprod. Bovinos Centr. I.A., I Curso Act. Reprod. Bovina, pp. 36–37.

Wiggans, G.R., and C.A. Ernst. 1988. Collection of somatic cell field data and application of adjustment factors for lactation stage and sampling month. J. Dairy Sci. 71(Suppl. 1):242(P370).

Wiggans, G.R., and P.M. VanRaden. 1989. Developments in the USDA animal model system for genetic evaluation of yield traits. J. Dairy Sci. 72(Suppl. 1):71(170).

Norman, H.D., G.R.Wiggans, C.A. Ernst, and J.R. Wright. 1989. Determination of size of management group for optimizing predictability in the animal model. J. Dairy Sci. 72(Suppl. 1):71(171).

Powell, R.L., and G.R. Wiggans. 1989. Comparison of animal model and Modified Contemporary Comparison evaluations. J. Dairy Sci. 72(Suppl. 1):71–72(172).


Abstracts (cont.)

VanRaden, P.M., C.A. Ernst, G.R. Wiggans, and H.D. Norman. 1989. Ability of animal model and Modified Contemporary Comparison evaluations of parents to predict future progeny performance. J. Dairy Sci. 72(Suppl. 1):72(173).

Powell, R.L., G.R. Wiggans, P.M. VanRaden, and H.D. Norman. 1989. Experience with the animal model for dairy cattle evaluations in the United States. Summaries-Resumes-Zusammenfassungen, 40th Annu. Mtg. Euro. Assoc. Anim. Prod. I(G5.12):187–188.

Ferris, T.A., and G.R. Wiggans. 1990. Accuracy of animal model parent evaluations in predicting PTA for AI sampled bulls. J. Dairy Sci. 73(Suppl. 1):141(P63).

Powell, R.L., G.R. Wiggans, and H.D. Norman. 1990. Discrepancies between daughter yield deviation and parent average. J. Dairy Sci. 73(Suppl. 1):141(P64).

VanRaden, P.M., C.A. Ernst, and G.R. Wiggans. 1990. Expansion of projected lactation records to stabilize genetic variance. J. Dairy Sci. 73(Suppl. 1):143(P69).

Wiggans, G.R., and P.M. VanRaden. 1990. Reducing memory requirements for animal model evaluations. J. Dairy Sci. 73(Suppl. 1):143(P71).

Da, Y., M. Grossman, G.R. Wiggans, and I. Misztal. 1990. Estimation of genetic parameters of somatic cell scores. J. Dairy Sci. 73(Suppl. 1):204(P252).

Banos, G., and G.R. Wiggans. 1991. Comparison of methods for joint ranking of US and Canadian bulls. J. Dairy Sci. 74(Suppl.1):231(P269).

Robinson, J.A.B., and G.R. Wiggans. 1991. Comparison of Canadian and US animal model bull evaluations of Ayrshire and Jersey yield traits. J. Dairy Sci. 74(Suppl. 1):232(P270).

Powell, R.L., G.R. Wiggans, and J.A.B. Robinson. 1991. Comparison of US and Canadian animal model evaluations of the same Ayrshire cows. J. Dairy Sci. 74(Suppl. 1):232(P271).

Wiggans, G.R., and P.M. VanRaden. 1991. Method and effect of adjustment for heterogeneous variance. J. Dairy Sci. 74(Suppl. 1):264(P366).

Ferris, T.A., and G.R. Wiggans. 1991. Accuracy of animal model parent evaluations in predicting daughter yield deviations for AI sampled bulls. J. Dairy Sci. 74(Suppl. 1):265(P371).

Misztal, I., T.J. Lawlor, T.H. Short, and G.R. Wiggans. 1991. Computing genetic evaluations for Holstein type with a workstation. J. Dairy Sci. 74(Suppl. 1):286(P434).

Wiggans, G.R., S.M. Hubbard, and H.D. Norman. 1991. Verification of cow birth date by comparison with dam birth and calving dates. J. Dairy Sci. 74(Suppl. 1):312(NE11).

Powell, R.L., G.R.Wiggans, and H.D. Norman. 1992. Utilization of elite Holstein cows. J. Dairy Sci. 75(Suppl. 1):154(P27).

Wiggans, G.R., P.M. VanRaden, and R.L. Powell. 1992. A method for combining United States and Canadian bull evaluations. J. Dairy Sci. 75(Suppl. 1):245(P301).


Abstracts (cont.)

Ngwerume, F., T.A. Ferris, C.E. Meadows, and G.R. Wiggans. 1992. Effect of herdsize on phenotypic variances for ME milk of first lactation cows. J. Dairy Sci. 75(Suppl. 1):245(P302).

Norman, H.D., L.G. Waite, G.R. Wiggans, and L.M. Walton. 1993. New editing system for national dairy genetics data base. J. Dairy Sci. 76(Suppl. 1):151(P12).

Wiggans, G.R. 1993. Meeting the needs at the national level for genetic evaluation and health monitoring. J. Dairy Sci. 76(Suppl. 1):195(P144).

VanRaden, P.M., and G.R. Wiggans. 1993. Genetic evaluation of herdlife with an animal model. J. Dairy Sci. 76(Suppl. 1):251(P313).

Powell, R.L., G.R. Wiggans, and P.M. VanRaden. 1993. Effect of direction of gene flow on conversion equations. J. Dairy Sci. 76(Suppl. 1):292(P437).

Schutz, M.M., P.M. VanRaden, and G.R. Wiggans. 1993. Genetic variation of lactation average somatic cell scores in milk of dairy cattle. Proc. BARC Poster Day 1993, p. 4(7).

Weller, J.I., and G.R. Wiggans. 1994. Maximum likelihood estimation of quantitative trait locus parameters in a granddaughter design with an expectation maximization algorithm. J. Dairy Sci. 77(Suppl. 1):58(220).

Wiggans, G.R., and P.M. VanRaden. 1994. Effect of including parity-age classes on estimated genetic trend for milk and component yields. J. Dairy Sci. 77(Suppl. 1):267(1029).

Powell, R.L., and G.R. Wiggans. 1994. Conversion equations derived from population variances and a full-brother model. J. Dairy Sci. 77(Suppl. 1):319(1229).

Lee, J.K., P.M. VanRaden, H.D. Norman, G.R. Wiggans, and T.R. Meinert. 1995. Effect of accounting for initial yield when determining the influence of days open during the current lactation on Holstein yield traits. J. Dairy Sci. 78(Suppl. 1):250(P295).

Wiggans, G.R., and M.E. Goddard. 1996. A computationally feasible test day model with separate first and later lactation genetic effects. New Zealand Soc. Anim. Prod. 56th Annu. Conf. 1996 – Abstr. Booklet, p. 55(68).

Wiggans, G.R., and M.E. Goddard. 1996. A test-day model for genetic evaluation of yield traits: Possible benefits and an approach for implementation. J. Dairy Sci. 79(Suppl. 1):144(P65).

Miller, R.H., T.R. Meinert, H.D. Norman, M.M. Schutz, and G.R. Wiggans. 1996. Influence of somatic cell score on subsequent test-day milk yield. J. Dairy Sci. 79(Suppl. 1):242(NE37).

Weller, J.I., D.W. Heyen, M. Band, E. Feldmesser, Y. Da, G.R. Wiggans, P.M. VanRaden, M. Ron, and H. Lewin. 1996. Detection of individual loci affecting somatic cell score in the US Holstein population with the aid of DNA microsatellites. Proc. VIII Inter. Symp. Vet. Lab. Diagnost., p. 13.

Ron, M., D.W. Heyen, M. Band, E. Feldmesser, Y. Da, G.R. Wiggans, P.M. VanRaden, J.I. Weller, and H. Lewin. 1996. Detection of individual loci affecting economic traits in the US Holstein population with the aid of DNA microsatellites. Proc. 25th Conf. Inter. Soc. Anim. Genet., p. 166.

Weller, J.I., M. Ron, P.M. VanRaden, and G.R. Wiggans. 1996. Detection of quantitative trait loci with the aid of genetic markers. Proc. Inter. Conf. Multiple Comparisons, p. 42.


Abstracts (cont.)

Ron, M., W. Heyen, M. Band, E. Feldmesser, Y. Da, G.R. Wiggans, P.M. VanRaden, J.I. Weller, and H.A. Lewin. 1997. Detection of economic trait loci in the US and Israeli Holstein populations with the aid of DNA microsatellites. Final Program & Abstr. Guide, Plant & Anim. Genome V, p. 128(P298).

Da, Y., P.M. VanRaden, M. Ron, J.E. Beever, J. Song, G.R. Wiggans, R.Z. Ma, J.I. Weller, and H.A. Lewin. 1997. Standardization of marker informativeness measures for different gene mapping designs. Final Program & Abstr. Guide, Plant & Anim. Genome V, p. 146(P368).

Van Tassell, C.P., G.R. Wiggans, and H.D. Norman. 1997. Multitrait parameter estimation for the national dairy cattle population using large data sets. Proc. BARC Poster Day 1997, p. 9(15).

VanRaden, P.M., R.J. Starkenburg, H.D. Norman, and G.R. Wiggans. 1997. Properties of owner-sampler and other records formerly excluded from national genetic evaluations. J. Dairy Sci. 80(Suppl. 1):196(P213).

Powell, R.L., G.R.Wiggans, and H.D. Norman. 1997. Equity of elite cow status across states. J. Dairy Sci. 80(Suppl. 1):196(P215).

Norman, H.D., R.L. Powell, and G.R. Wiggans. 1997. Genetic benefits from more frequent national bull evaluations. J. Dairy Sci. 80(Suppl. 1):197(P217).

Wiggans, G.R., J.C. Philpot, C.P. Van Tassell, and P.M. VanRaden. 1997. Collection and management of test day data in the United States. J. Dairy Sci. 80(Suppl. 1):198(P222).

Van Tassell, C.P., G.R. Wiggans, and H.D. Norman. 1997. Method R estimates of heritability for milk, fat, and protein yields from first lactations of dairy cattle. J. Dairy Sci. 80(Suppl. 1):226(P324).

Wiggans, G.R. 1997. Genetic evaluations in the United States: Present method and proposed changes. 32nd Inter. Symp., “Animal Production: Advances in Technology, Accuracy and Management,” 50th Anniv. Soc. Ital. Progr. Zootec.

Philpot, J.C., G.R. Wiggans, and C.P. Van Tassell. 1998. Use of the World Wide Web to distribute genetic evaluations. J. Dairy Sci. 81(Suppl. 1):62(241).

Gengler, N., G.R. Wiggans, and J.R. Wright. 1998. Development of multitrait evaluation for linear traits and single-trait evaluation for final score of six dairy cattle breeds. J. Dairy Sci. 81(Suppl. 1):85(332).

Wiggans, G.R., and S.M. Hubbard. 1998. Genetic evaluation of yield and conformation traits of dairy goats. J. Dairy Sci. 81(Suppl. 1):110(425). (Also reprinted in Amer. Dairy Goat Assoc. News and Events, 2nd qtr., p. 11, 1999.)

Wiggans, G.R., and N. Gengler. 1999. Strategies for combining test-day evaluations into an index for lactation performance. J. Dairy Sci. 82(Suppl. 1):102(P270).

Wiggans, G.R. 2000. Genetic evaluation of yield and type traits of dairy goats. J. Dairy Sci. 83(Suppl. 1):7–8 (25).

Philpot, J.C., and G.R. Wiggans. 2000. Collection, validation, and use of test-day data for genetic evaluations. J. Dairy Sci. 83(Suppl. 1):51–52(212).

Norman, H.D., J.R. Wright, and G.R. Wiggans. 2000. Effect of adjustment for herd test day on repeatability and heritability of 305-day milk, fat, and protein yields. J. Dairy Sci. 83(Suppl. 1):52(216).


Abstracts (cont.)

Ferris, T.A., H.D. Norman, and G.R. Wiggans. 2000. Comparison of genetic evaluations of culled and surviving cows. J. Dairy Sci. 83(Suppl. 1):53(220).

Gengler, N., T. Dusseldorf, G.R. Wiggans, and J.R. Wright. 2000. Heterogeneity of (co)variance components for Jersey type traits. J. Dairy Sci. 83(Suppl. 1):61(253).

Powell, R.L., H.D. Norman, and G.R. Wiggans. 2000. Stability of yield for Holstein bulls in artificial-insemination service. J. Dairy Sci. 83(Suppl. 1):62(256).

Bormann, J., G.R. Wiggans, J.C. Philpot, T. Druet, and N. Gengler. 2000. Estimation of variance components for cow and parity effects from test-day yields. J. Dairy Sci. 83(Suppl. 1):63(262).

Auvray, B., G.R. Wiggans, F. Miglior, and N. Gengler. 2001. Method to establish average relationships among Holstein bull populations over time. J. Dairy Sci. 84(Suppl. 1):215(891).

Gengler, N., and G.R. Wiggans. 2001. Variance of effects of lactation stage within herd by herd yield. J. Dairy Sci. 84(Suppl. 1):216(896).

Gengler, N., G.R. Wiggans, J.R. Wright, and T. Druet. 2001. Simultaneous accounting for heterogeneity of (co)variance components in genetic evaluation of type traits. J. Dairy Sci. 84 (Suppl. 1):247(1022).

Gipson, T.A., and G.R. Wiggans. 2001. Modeling extended lactation curves in dairy goats using grafted polynomials. J. Dairy Sci. 84(Suppl. 1):450(1866).

Wiggans, G.R., P.M. VanRaden, and J.C. Philpot. 2002. Detection and adjustment of abnormal test day yields. J. Dairy Sci. 85(Suppl. 1):32(125).

Van Tassell, C.P., G.R. Wiggans, J.C. Philpot, and I. Misztal. 2002. Improvements in dystocia national genetic evaluation system and data processing. J. Dairy Sci. 85(Suppl. 1):33(129).

Wiggans, G.R., P.M. VanRaden, and J.L. Edwards. 2003. Standardization of lactation records for variance of Mendelian sampling to reduce bias in evaluations of bull dams. J. Dairy Sci. 86(Suppl. 1):38(154).

VanRaden, P.M., M.E. Tooker, A.H. Sanders, and G.R. Wiggans. 2003. Quality of data included in genetic evaluations for daughter pregnancy rate. J. Dairy Sci. 86(Suppl. 1):132(521).

Miller, R.H., H.D. Norman, G.R. Wiggans, and J.R. Wright. 2003. Test-day milk loss associated with elevated test-day somatic cell score. J. Dairy Sci. 86(Suppl. 1):195(M65).

Van Tassell, C.P., G.R. Wiggans, and L.L.M. Thornton. 2004. Impact on calving ease evaluations of excluding herds with abnormal distribution of scores. J. Dairy Sci. 87(Suppl. 1):84–85(29).

Wiggans, G.R., and P.M. VanRaden. 2004. Accounting for differences in rate of maturity in yield evaluations. J. Dairy Sci. 87(Suppl. 1):412(737).

Wiggans, G.R. 2005. Reproduction data in USDA database. J. Dairy Sci. 88(Suppl. 1):354(559).

Gengler, N., G.R. Wiggans, L.L.M. Thornton, J.R. Wright, and T. Druet. 2005. Accounting for heterogeneous variances in multi-trait evaluation of Jersey type traits. J. Dairy Sci. 88(Suppl. 1):11(M23).


Abstracts (cont.)

VanRaden, P.M., M.E. Tooker, J.B. Cole, G.R. Wiggans, and J.H. Megonigal Jr. 2006. Genetic evaluations for mixed breed populations. J. Dairy Sci. 89(Suppl. 1):98(40).

Wiggans, G.R., L.L.M. Thornton, and R.R. Neitzel. 2006. Genetic evaluation of milking speed for Brown Swiss dairy cattle. J. Dairy Sci. 89(Suppl. 1):248(259).

Cole, J.B., G.R. Wiggans, P.M. VanRaden, and R.H. Miller. 2006. Stillbirth (co)variance components for a sire-maternal grandsire threshold model. J. Dairy Sci. 89(Suppl. 1):273(339).

Wiggans, G.R., L.L.M. Thornton, and R.R. Neitzel. 2006. Genetic parameters for rear legs/rear view in Brown Swiss cattle. J. Dairy Sci. 89(Suppl. 1):274(341).

Wiggans, G.R., M.A. Faust, and F. Miglior. 2007. Harnessing automatic data collection to enhance genetic improvement programs. J. Dairy Sci. 90(Suppl. 1):377(422).

Van Tassell, C.P., L.K. Matukumalli, C. Taylor, T.P.L. Smith, T.S. Sonstegard, R.D. Schnabel, M.V.B. De Silva, G.R. Wiggans, G. Liu, S. Moore, and J.F. Taylor. 2007. Construction and application of a bovine high-density SNP assay. J. Dairy Sci. 90(Suppl. 1):421–422(560).

Wiggans, G.R., J.B. Cole, and L.L.M. Thornton. 2007. Multi-trait evaluation for calving ease and stillbirth with separate genetic effects by parity. J. Dairy Sci. 90(Suppl. 1):19(M49).

VanRaden, P.M., C.P. Van Tassell, G.R. Wiggans, T.S. Sonstegard, R.D. Schnabel, and F. Schenkel. 2008. Reliability of genomic predictions for North American dairy bulls. J. Dairy Sci. 91(E-Suppl. 1):305(261).

Wiggans, G.R., T.S. Sonstegard, P.M. VanRaden, L.K. Matukumalli, R.D. Schnabel, J.F. Taylor, F.S. Schenkel, and C.P. Van Tassell. 2008. Selection of single nucleotide polymorphisms and genotype quality for genomic prediction of genetic merit in dairy cattle. J. Dairy Sci. 91(E-Suppl. 1):507(524).

Wiggans, G.R., P.M. VanRaden, L.R. Bacheller, F.A. Ross Jr., T.S. Sonstegard, G. te Meerman, and C.P. Van Tassell. 2009. Transition of genomic evaluation from a research project to a production system. J. Dairy Sci. 92(E-Suppl. 1):313–314(278).

Van Tassell, C.P., P.M. VanRaden, G.R. Wiggans, L.K. Matukumalli, S. Schroeder, J. O’Connell, R.D. Schnabel, J.F. Taylor, E.J. Pollak, M. Munson, D. Bailey, and T.S. Sonstegard. 2009. Accelerating genetic improvement with SNP chips and DNA sequencing. J. Dairy Sci. 92(E-Suppl. 1):523(599). Zhang, L., G.R. Wiggans, J. Clay, R. LaCroix, J.Z. Wang, T. Gipson, and S.S. Zeng. 2009. Somatic cell count in milk of goats enrolled in Dairy Herd Improvement program in 2007. J. Dairy Sci. 92(E-Suppl. 1):306(T343).

Schenkel, F.S., M. Sargolzaei, G. Kistemaker, G.B. Jansen, P. Sullivan, B.J. Van Doormaal, P.M. VanRaden, and G.R. Wiggans. 2009. Genomic evaluation of Holstein cattle in Canada utilizing MACE proofs. J. Dairy Sci. 92(E-Suppl. 1):396(W38).

Ma, L., T.S. Sonstegard, J.B. Cole, G.R. Wiggans, B.A. Crooker, C.P. Van Tassell, J. Yang, L. Matukumalli, and Y. Da. 2010. X chromosome SNPs were heavily involved in epistasis effects of net merit component traits in contemporary U.S. Holstein cows. Proc. Plant Anim. Genome XVIII Conf., P542.

Wiggans, G.R., L. Ma, T.S. Sonstegard, J.B. Cole, B.A. Crooker, C.P. Van Tassell, J. Yang, L. Matukumalli, and Y. Da. 2010. High resolution QTL map of body conformation traits from genome-wide association analysis in contemporary U.S. Holstein cows. Proc. Plant Anim. Genome XVIII Conf., P547.


Abstracts (cont.)

Cole, J.B., T.S. Sonstegard, L. Ma, G.R. Wiggans, B.A. Crooker, C.P. Van Tassell, J. Yang, L. Matukumalli, and Y. Da. 2010. High resolution QTL map of net merit component traits and calving traits from genome-wide association analysis in contemporary U.S. Holstein cows. Proc. Plant Anim. Genome XVIII Conf., P565. Wiggans, G.R., and P.M. VanRaden. 2010. Improved reliability approximation for genomic evaluations in the United States. J. Dairy Sci. 93(E-Suppl. 1):533(617).

Wiggans, G.R., T.A. Cooper, and P.M. VanRaden. 2010. Cow adjustments for genomic predictions of Holsteins and Jersey bulls. J. Dairy Sci. 93(E-Suppl. 1):533–534(618).

VanRaden, P.M., J.R. O’Connell, G.R. Wiggans, and K.A.Weigel. 2010. Filling in missing genotypes using haplotypes. J. Dairy Sci. 93(E-Suppl. 1):534–535(622).

Wiggans, G.R., P.M. VanRaden, and T.A. Cooper. 2011. Adjustment of deregressed values from cow evaluations to have the similar mean and variance as bull deregressed values. J. Dairy Sci. 94(E-Suppl. 1):165(37).

Wiggans, G.R., T.A. Cooper, K.M. Olson, and P.M. VanRaden. 2011. Use of the Illumina Bovine3K BEAD chip in dairy genomic evaluation. J. Dairy Sci. 94(E-Suppl. 1):420(329).

VanRaden, P.M., M.E. Tooker, K.M. Olson, T.A. Cooper, G.R. Wiggans, and C.P. VanTassell. 2011. Properties of different density genotypes used in dairy cattle evaluation. J. Dairy Sci. 94(E-Suppl. 1):420(330).

VanRaden, P.M., D.J. Null, G.R. Wiggans, T.S. Sonstegard, and E.E. Connor. 2011. Genomic imputation and evaluation using 342 high density Holstein genotypes. J. Dairy Sci. 94(E-Suppl. 1):533(W53).

McClure, M., E.-S. Kim, J. Cole, G.R. Wiggans, L.K. Matukumalli, S. Schroeder, C. Van Tassell, and T. Sonstegard. 2012. Hunting for the weaver causative mutation in Brown Swiss cattle. Proc. Plant Anim. Genome XX Conf., P0561.

Sonstegard, T., S. Wang, C. Van Tassell, L. Ma, G. Wiggans, B. Crooker, J. Cole, B. Mariani, E.-S. Kim, J. Garbe, S. Fahrenkrug, G. Liu, and Y. Da. 2012. Signature of forty years of artificial selection in U.S. Holstein cattle identified by long range frequency analyses. 4th Int. Conf. on Quantitative Genet. Programme & Book of Abstracts, p. 213, P-314.

Wiggans, G.R., J.R. Wright, C.J. Muenzenberger, and R.R. Neitzel. 2012. Genetic evaluation of mobility for Brown Swiss dairy cattle. J. Dairy Sci. 95(Suppl. 2):267(T43).

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, J.R. O’Connell, and L.R. Bacheller. 2012. Maternal grandsire confirmation and discovery in dairy cattle. J. Dairy Sci. 95(Suppl. 2):400(323).

Wiggans, G.R., P.M. VanRaden, T.A. Cooper, C.P. Van Tassell, T. Sonstegard, and B. Simpson. 2012. Characteristics and use of the Illumina BovineLD BeadChip. J. Dairy Sci. 95(Suppl. 2):447(450).

McClure, M., T.S. Sonstegard, G.R. Wiggans, A. Van Eenennaam, K. Weber, M.C. Penedo, D.P. Berry, J. Flynn, J.F. Garcia, A.S. do Carmo, L.C.A. Regitano, M. Albuquerque, M.V. Silva, M. Coffey, K. Moore, M.-Y. Boscher, L. Genestout, R. Mazza, J. Taylor, R. Schnabel, M.A. Machado, B. Simpson, J.C. McEwan, A. Cromie, L.L. Coutinho, L.A. Kuehn, J.W. Keele, E.K. Piper, J. Cook, E. Marques, and C.P. Van Tassell. 2013. Imputation of microsatellite alleles from dense SNP genotypes for parentage verification across multiple Bos taurus and Bos indicus breeds. Proc. Plant Anim. Genome XXI Conf., P0132.


Abstracts (cont.)

Cooper, T.A., G.R. Wiggans, D.J. Null, and J.L. Hutchison. 2013. Genomic evaluation and identification of a haplotype affecting fertility for Ayrshire dairy cattle. J. Dairy Sci. 96(E-Suppl. 1):74(T206).

Weller, J.I., P.M. VanRaden, and G.R. Wiggans. 2013. Application of a posteriori granddaughter and modified granddaughter designs to determine Holstein haplotype effects. J. Dairy Sci. 96(E-Suppl. 1): 617(538).

Wiggans, G.R., T.A. Cooper, and P.M. VanRaden. 2013. Using 90,113 single nucleotide polymorphisms in genomic evaluation of dairy cattle. J. Dairy Sci. 96(E-Suppl. 1):617(539).

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, D.J. Null, J.L. Hutchison, O.M. Meland, and H.D. Norman. 2014. Calculation and delivery of US genomic evaluations of dairy cattle. J. Dairy Sci. 97(E-Suppl. 1):77–78(0152).

Fugate, R.T., L.H. Dauten, G.R. Wiggans, and H.M. White. 2014. Determination of single nucleotide polymorphisms associated with subclinical ketosis in Jersey cattle. J. Dairy Sci. 97(E-Suppl. 1):472(0945).

Su, G., U.S. Nielsen, G.R. Wiggans, G.P. Aamand, B. Guldbrandtsen, and M.S. Lund. 2014. Improving genomic prediction for Danish Jersey using a joint Danish-US reference population. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 060.

Spurlock, D.M., R.J. Tempelman, K.A. Weigel, L.E. Armentano, G.R. Wiggans, R.F. Veerkamp, Y. de Haas, M.P. Coffey, E.E. Connor, M.D. Hanigan, C.R. Staples, and M.J. VandeHaar. 2014. Genetic architecture and biological basis of feed efficiency in dairy cattle. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 287.

Wiggans, G.R., T.A. Cooper, D.J. Null, and P.M. VanRaden. 2014. Increasing the number of single nucleotide polymorphisms used in genomic evaluations of dairy cattle. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 301.

Ruiz-Lopez, F.J., A. García-Ruiz, G.R. Wiggans, C.P, Van Tassell, and H.H. Montaldo. 2014. Impact of adding foreign genomic information on Mexican Holstein imputation. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 479.

Sargolzaei, M., L.R. Schaeffer, J.P. Chesnais, G. Kistemaker, G.R. Wiggans, and F.S. Schenkel. 2014. Approximation of reliability of direct genomic breeding values. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 485.

Cooper, T.A., G.R. Wiggans, and P.M. VanRaden. 2014. Including cow information in genomic prediction of Holstein dairy cattle in the US. Proc. 10th World Congr. Genet. Appl. Livest. Prod., Commun. 803.

Wu, X.-L., A. McQuistan, S. Bauck, and G.R. Wiggans. 2015. selectSNP: An R package for selecting SNPs optimal for genetic evaluation. Plant Anim. Genome XXIII Conf., P0266.

Ma, L., J.R. O’Connell, P.M. VanRaden, B. Shen, C. Sun, D. Bickhart, J.B. Cole, D.J. Null, Y, Da, and G.R. Wiggans. 2015. Cattle sex-specific recombinations and their genetic control from a large pedigree analysis. Plant Anim. Genome XXIII Conf., P0273.

Huson, H.J., T.S. Sonstegard, J. Godfrey, D. Hambrook, C. Wolfe, G.R. Wiggans, H. Blackburn, and C.P. Van Tassell. 2015. A genetic investigation of Isle of Jersey cattle, the foundation of the Jersey breed. Plant Anim. Genome XXIII Conf., P0279(W143).


Abstracts (cont.)

Sonstegard, T.S., L. Ma., E.-S. Kim, C.P. Van Tassell, G.R. Wiggans, B.A. Crooker, J.B. Cole, G. Liu, J.R. Garbe, S.C. Fahrenkrug, F.A. Ponce de Leon, and Y. Da. 2015. Genome changes due to forty years of artificial selection associated with divergent dairy production and reproduction. Plant Anim. Genome XXIII Conf., W150.

Cooper, T.A., S.A.E. Eaglen, G.R. Wiggans, J. Jenko, H.J. Huson, D.M. Morrice, M. Boichard, W.G. Luff, J.A. Woolliams, and B.P. Van Doormaal. 2015. Genomic evaluation, breed identification, and population structure of North American, English and Island Guernsey dairy cattle. J. Dairy Sci. 98(Suppl. 2):345–346(T88).

Ma, L., T.S. Sonstegard, C. Van Tassell, J.B. Cole, G.R. Wiggans, B.A. Crooker, F.A. Ponce de Leon, and Y. Da. 2015. Selection signature analysis in Holstein cattle identified genes know to affect reproduction. J. Dairy Sci. 98(Suppl. 2):350(T102).

Wiggans, G.R., T.A. Cooper, P.M. VanRaden, C.P. Van Tassell, D.M. Bickhart, and T.S. Sonstegard. 2015. Effect of increasing the number of single nucleotide polymorphisms from 60,000 to 85,000 in genomic evaluation of Holsteins. J. Dairy Sci. 98(Suppl. 2):578(537).

Shen, B., Z. Wang, J. Jiang, J.B. Cole, D. Bickhart, G.R. Wiggans, Y. Da, G.E. Liu, and L. Ma. 2016. Effects of sex, age, and breed on genetic recombination features in cattle. Plant Anim. Genome XXIV Conf., P0522.

Wiggans, G.R., P.M. VanRaden, D.M. Bickhart, and M.E. Tooker. 2016. Strategy for incorporating newly discovered causative genetic variants into genomic evaluations. J. Dairy Sci. 99(E–Suppl. 1):137(abstr. 0296).

Hardie, L.C., M.J. VandeHaar, R.J. Tempelman, K.A. Weigel, L.E. Armentano, G.R. Wiggans, R.F. Veerkamp, Y. de Haas, M.R. Coffey, E.E. Connor, M.D. Hanigan, C. Staples, Z. Wang, and D.M. Spurlock. 2016. Genetic architecture of feed efficiency in mid-lactation Holstein dairy cows. J. Dairy Sci. 99(E–Suppl. 1):185–186(abstr. 0392).

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