milk composition of grazing dairy cows supplemented with licury oil

MILK COMPOSITION OF GRAZING MILK COMPOSITION OF GRAZING DAIRY COWS SUPPLEMENTED WITH DAIRY COWS SUPPLEMENTED WITH

LICURY OILLICURY OILLICURY OILLICURY OILLIMA. L.S., OLIVEIRA. R.L., GARCEZ NETO. A.F.,

RIBEIRO R D X ; BAGALDO A R SANTANA FILHO RIBEIRO. R.D.X.; BAGALDO. A.R., SANTANA FILHO. N.B., RIBEIRO. C.V.D.M., BORJA. M.S.

Ronaldo Lopes OliveiraRonaldo Lopes OliveiraANIMAL PRODUCTION DEPARTMENT

FEDERAL UNIVERSITY OF BAHIA (UFBA)SALVADOR BAHIA BRAZILSALVADOR, BAHIA, BRAZIL.

IntroductionIntroductionIntroductionIntroduction••Milk d ti iMilk d ti i B ilB il••Milk production inMilk production in BrazilBrazil (IBGE, 2008)(IBGE, 2008)

25.000 ton/yr25.000 ton/yr

GG SS••Grazing animalsGrazing animals SupplementationSupplementation

MILK COMPOSITION OF DAIRY COWS SUPPLEMENTED WITH LICURY OIL

IntroductionIntroductionIntroductionIntroductionSS ( )( )•• Syagrus coronataSyagrus coronata (Martius) Beccari(Martius) Beccari

•• Licury oil;Licury oil;

•• Utilization on animal nutritionUtilization on animal nutrition::

Energy Energy densitydensity of diets; of diets; Milk d tiMilk d tiMilk production;Milk production;Benefits to human health Benefits to human health CLA (???)CLA (???)


ObjectiveObjectiveObjectiveObjective

To determine the chemical composition of To determine the chemical composition of milk from grazing cows supplemented with milk from grazing cows supplemented with g g ppg g pp

different levels of licury oil (different levels of licury oil (Syagrus Syagrus coronatacoronata (Martius) Beccari) in the(Martius) Beccari) in thecoronatacoronata (Martius) Beccari) in the (Martius) Beccari) in the

concentrateconcentrate


Materials and methodsMaterials and methodsMaterials and methodsMaterials and methodsE i t l FE i t l FExperimental Farm Experimental Farm

Federal University of Federal University of Bahia (UFBA)Bahia (UFBA)( )( )

BrazilBrazil

Exp. lasted 84 daysExp. lasted 84 days17 d f d i d 4 d f17 d f d i d 4 d f17 days for adaptation and 4 days for 17 days for adaptation and 4 days for

the collection/periodthe collection/period1616 dairydairy cowscows Holstein x GirHolstein x Gir16 16 dairydairy cowscows Holstein x GirHolstein x Gir

MILK COMPOSITION DAIRY COWS SUPPLEMENTED WITH LICURY OIL

Materials and methodsMaterials and methodsTreatment:Treatment:

0%0%

1 5%1 5%Licury oil added to

1.5%1.5%

3%3%

the concentrate(% DM)

4.5%4.5%

•• Fed 3 kg twice daily (at milking)Fed 3 kg twice daily (at milking)


Materials and methodsMaterials and methodsMaterials and methodsMaterials and methodsTable 1. Ingredients and chemical composition of diets (%DM)Table 1. Ingredients and chemical composition of diets (%DM)

IngredientIngredientTreatment

Table 1. Ingredients and chemical composition of diets (%DM) Table 1. Ingredients and chemical composition of diets (%DM)

IngredientIngredient0.0 1.5 3.0 4.5

Ground corn 79.16 77.34 75.53 73.71

Soybean meal 17.84 18.16 18.47 18.79

Urea 3.00 3.00 3.00 3.00Li il 0 00 1 50 3 00 4 50Licury oil 0.00 1.50 3.00 4.50

Chemical compositionChemical composition

Crude protein 23.00 23.00 23.00 23.00

Ether extract 3.43 4.87 6.30 7.70

TDN 78.29 79.66 81.04 82.41


Materials and methodsMaterials and methodsMaterials and methodsMaterials and methods

•• Four 4x4 Latin Square designFour 4x4 Latin Square design;;

••The data were evaluated by a linear regression analyses;The data were evaluated by a linear regression analyses;

••Milk composition was analyzed for protein, fat, and total solids.Milk composition was analyzed for protein, fat, and total solids.


ResultsResultsResultsResults•• Milk Protein:Milk Protein:•• Milk Protein:Milk Protein:

3.85

rote

in Ŷ= 3.35 – 0.07xR2= 0 95

3.65

3.75

% m

ilk p

r R = 0.95

3 45

3.55

%

3.450 1.5 3 4.5

% of licury oil in the concentrade

•• SANTOS t l (2001)SANTOS t l (2001)•• SANTOS et al. (2001); SANTOS et al. (2001);

•• EIFERT et al. (2006);EIFERT et al. (2006);

•• FLOWERS et al. (2008);FLOWERS et al. (2008);MILK COMPOSITION OF DAIRY COWS SUPPLEMENTED WITH LICURY OIL

ResultsResultsResultsResults• Milk fatMilk fat

3.96

3.88

3.92

lk fa

t

3.84

% m

il

Ŷ= 3,81 + 0.03x3.8

0 1.5 3 4.5

R2= 0.98

% f li il i th t d

•• EIFERT et al. (2006);EIFERT et al. (2006);


( );( );

•• FLOWERS et al (2008);FLOWERS et al (2008);•• FLOWERS et al. (2008);FLOWERS et al. (2008);


ResultsResultsResultsResults•• Total Solids; Total Solids;

12.05

olid

s

11.85

11.95

ilk to

tal s

Ŷ= 11.7 + 0.1xR2= 0 91

11.75% m

R2= 0.91

11.650 1.5 3 4.5


• DUARTE et al. (2005);DUARTE et al. (2005);

•• LÓPEZ et al (2007);LÓPEZ et al (2007);•• LÓPEZ et al. (2007);LÓPEZ et al. (2007);


ConclusionsConclusions

Licury oil addition to grazing dairy cows may be Licury oil addition to grazing dairy cows may be profitable for producers when milk price favors profitable for producers when milk price favors

fat and total solids rather than milk protein.fat and total solids rather than milk protein.


Thank you!Thank you!yy

Ronaldo Lopes Oliveira

ANIMAL PRODUCTION DEPARTMENT FEDERAL UNIVERSITY OF BAHIA (UFBA)

SALVADOR BAHIA BRAZILSALVADOR, BAHIA, BRAZIL.

ronaldooliveira@ufba [email protected]

milk composition of grazing dairy cows supplemented with licury oil

Documents