A n i m a I R e p r o d u c t i o n Science , 24 ( 1991 ) 361-364 361 Elsevier Science Publishers B.V., Amsterdam

Author Index

Abd EI-Hamid, M.W., see E1-Gaafary, M.N. et al. Abd E1-Rahim, M.I., see E1-Gaafary, M.N. et al. Adams, G.P., Ginther, O.J. (Madison, WI, U.S.A.) and Sumar, J. (Lima, Peru)

Form and function of the corpus luteum in llamas ........................................................... 127 Albihn, A., Gustafsson, H. and Rodriguez-Martinez, H. (Uppsala, Sweden)

Maternal influence on the early development ofasynchronously transferred bovine embryos ........................................................................................................................ 25

Bergfelt, D.R., Kastelic, J.P. and Ginther, O.J. (Madison, WI, U.S.A.) Continued periodic emergence of follicular waves in nonbred progesterone-treated

heifers ........................................................................................................................... 193 Boland, M.P., see Crosby, T.F. et al. Cantley, T.C., see Martin, M.J. et al. Christenson, R.K., see Wise, T. et al. Chun, S.Y., see Rosenberg, M. et al. Conley, A.J. and Ford, S.P. (Ames, IA, U.S.A.)

Effects of PGF2, on pig corpora lutea following administration on Day 9 of the estrous cycle ............................................................................................................................. 335

Coy, A. (Tamoulipas, Mexico) and Garcia-Winder, M. (Mexico, Mexico) Luteal life span induced by hCG in Bos taurus x Bos ind icus beef heifers treated with

norgestomet for different periods ................................................................................ 159 Crosby, T.F.~ Boland, M.P. and Gordon, I. (Newcastle, Ireland)

Effect ofprogestagen treatments on the incidence ofoestrus and pregnancy rates in ewes .............................................................................................................................. 109

D'Antuono, M.F., see Paterson, A.M. et al. Day, B.N., see Martin, M.J. et al. Dimmick, M.A., Gimenez, T. and Spitzer, J.C. (Clemson, SC, U.S.A.)

Ovarian endocrine activity and development ofovarian follicles during the postpartum interval in beefcows .................................................................................................... 173

Dodson, S.E., see McLeod, B.J. et al. Edqvist, L.-E., see Rojkittikhun, T. et al. Einarsson, S., see Rojkittikhun, T. et al. El-Gaafary, M.N., Abd EI-Hamid, M.W. and Abd EI-Rahim, M.I. (Zagazig, Egypt)

Acrosomal damage and enzymic release of rabbit semen supplemented with prostaglandin F2 .......................................................................................................... 153

Elsaesser, F., s e e v a n der Meulen, J. et al. Evans, G., see Jabbour, H.N. and Evans, G. Fiser, P.S., Hansen, C., Underhill, K.L. and Shrestha, J.N.B. (Ottawa, Ont., Canada)

The effect of induced ice nucleation (seeding) on the postthaw motility and acrosomal integrity of boar spermatozoa ...................................................................................... 293

362

Fitzsimons, J., s e e Ronayne, E. et al. Flowers, W.L., s e e Marlin, M.J. et al. Folman, Y., s e e Rosenberg, M. et al. Ford, J.J., s e e Wise, T. et al. Ford, S.P., s e e Conley, A.J. and Ford, S.P. Fulka, Jr., J., s e e Petr, J. et al. Garcia-Winder, M., s e e Coy, A. and Garcia-Winder, M. Garcia-Ximenez, F., Vicente, J.S. and Santacreu, M.A. (Valencia, Spain)

Embryo transfer in lactating rabbit does by laparoscopy .................................................. 343 Garcia-Ximenez, F., s e e Vicente, J.S. and Garcia-Ximenez, F. Gimenez, T., s e e Dimmick, M.A. et al. Ginther, O.J., s e e A d a m s , G.P. et al.

s e e Bergfelt, D.R. et al. Gordon, I., s e e Crosby, T.F. et al. Grieger, D.M., Roberts, A.J. and Reeves, J.J. (Pullman, WA, U.S.A.)

The association of the pre-ovulatory surge of LH and conception in beef cattle .............. 205 Gunn, R.G., s e e Rhind, S.M. et al. Gustafsson, H., s e e A l b i h n , A. et al. Hanrahan, J.P., s e e Ronayne, E. et al. Hansen, C., s e e Fiser, P.S. et al. Haresign, W., s e e Khalid, M. et al. Helmond, F.A., s e e v a n der Meulen, J. et al. Herz, Z., s e e Rosenberg, M. et al. Hunter, M.G., s e e Khalid, M. et al. Inaba, T., s e e Kawate, N. et al. Jabbour, H.N., and Evans, G. (Sydney, N.S.W., Australia)

Ovarian and endocrine responses of merino ewes following treatment with PMSG and GnRH or PMSG antiserum ......................................................................................... 259

Jilek, F., s e e Petr, J. et al. Jones, P.S., s e e Watson, P.F. et al. Kaim, M., s e e Rosenberg, M. et al. Kastelic, J.P., s e e Bergfelt, D.R. et al. Kawate, N., Inaba, T. and Mori, J. (Osaka, Japan)

Gonadotropin-releasing hormone receptors in anterior pituitaries of cattle during the estrous cycle ................................................................................................................. 185

Kelly, R.W., s e e Parkinson, T.J. et al. Kennelly, J.J., s e e Rajamahendran, R. et al. Ketema, H., s e e Mukasa°Mugerwa, E. et al. Khalid, M., Haresign, W. and Hunter, M.G. (Lougfiborough, Gt. Britain)

Regulation of pituitary GnRH receptors by continuous infusion of GnRH in the seasonally anoestrous ewe: evidence of ovarian involvement ..................................... 271

Klindt, J., s e e Wise, T. et al. Kumi-Diaka, J., s e e Sekoni, V.O. et al. Lamming, G.E., s e e McLeod, B.J. et al.

s e e Parkinson, T.J. et al. Langfrod, G.A. and Shrestha, J.N.B. (Ottawa, Ont., Canada)

Seminal vesicle activity during cyclic or stabilized testicular activity in rams ................. 85 Marlin, M.J., Cantley, T.C., Flowers, W.L. and Day, B.N. (Columbia, MO, U.S.A.)

Development of porcine embryos following microsurgical blastomere transplantation .. 315 McLeod, B.J. (Maidenhead, Gt. Britain), Dodson, S.E., Peters, A.R. and Lamming, G.E.

(Loughborough, Gt. Britain ) Effects ofa GnRH agonist (Buserelin) on LH secretion in post-partum beef cows ........ 1

363

Merilan, C.P., s e e Salhab, S.A. and Merilan, C.P. Mesfin, T., s e e Mukasa-Mugerwa, E. et al. Mika, J., s e e P e t r , J. et al. Moil, J., s e e Kawate, N. et al. Mukasa-Mugerwa, E., Tegegne, A., Mesfin, T. and Teklu, Y. (Addis Ababa, Ethiopia)

Reproductive efficiency o f B o s i n d i c u s (Zebu) cows under artificial insemination management in Ethiopia .............................................................................................. 63

Mukasa-Mugerwa, E., Tegegne, A. and Ketema, H. (Addis Ababa, Ethiopia) Patterns of postpartum oestrus onset and associated plasma progesterone profiles in

B o s i n d i c u s cows in Ethiopia ........................................................................................ 73 Njoku, C.O., s e e Sekoni, V.O. et at. Oudenaarden, C.P.J., s e e van der Meulen, J. et al. Owens, A.R., s e e Schofield, S.A. et al. Parkinson, T.J., Peters, A.R., Lamming, G.E. (Loughborough, Gt. Britain) and Kelly,

R.W. (Edinburgh, Gt. Britain) The effect of intra-aortic infusion of prostaglandin E-2 on luteal function of mid-cycle

heifers ........................................................................................................................... 217 Paterson, A.M., D'Antuono, M.E (South Perth, W.A., Australia) and Pearce, G.P. (Deer

Park, Vie., Australia) Seasonal variation in attainment of puberty in isolated and boar-exposed domestic

gilts ............................................................................................................................... 323 Pearce, G.P., s e e Paterson, A.M. et al. Peters, A.R., s e e McLeod, B.J. et al.

s e e Parkinson, T.J. et al. Petr, J., Tomanek, M., Fulka, Jr., J., Mika, J. and Jilek, F. (Uhrineves, Czechoslovakia)

Effects of GnRH on preovulatory endocrinology and oocyte maturation in PMSG- superovulated cows ...................................................................................................... 37

Phillips, C.J.C., s e e Schofield, S.A. et al. Plummet, J.M., s e e Watson, P.F. et al. Quirke, J.F., s e e Ronayne, E. et al. Rajamabendran, R., Shelford, J.A. Ravindran, V. (Vancouver, B.C., Canada) and

Kennelly, J.J. (Edmonton, Alta., Canada) Effect of single lactation treatment with recombinant bovine growth hormone on

reproductive performance in dairy cows ..................................................................... 211 Ravindarn, V., s e e Rajamahendran, R. et al. Reeves, J.J., s e e Grieger, D.M. et ai. Rhind, S.M., Gunn, R.G. (Roslin, Gt. Britain) and Wetherill, G.Z. (Edinburgh, Gt.

Britain) Diurnal profiles of LH, prolactin and progesterone and their inter-relationships in ewes

in high or moderate levels of body condition .............................................................. 119 Roberts, A.J., s e e Grieger, D.M. et al. Roche, J.F., s e e Ronayne, E. et al. Rodriguez-Martinez, H. s e e Albihn, A. et al. Rojanasthien, S., s e e Rojkittikhun, T. et al. Rojkittikhun, T., Rojanasthien, S., Edqvist, L.-E. and Einarrsson, S. (Uppsala, Sweden)

P1asms prolactin during pulsatile administration of GnRh and oestrus in lactating sows .............................................................................................................................. 355

Ronayne, E., Roche, J.F. (Dublin, Ireland), Fitzsimons, J., Hanrahan, J.P. (Tuam, Ireland) and Quirke, J.F. (Ingelheim am Rhein, F.R.G.) Effects of active immunisation of female lambs against androstenedione on LH

secretion, onset ofpuberty and ovulation rate ............................................................. 283.

364

Rosenberg, M., Chun, S.Y., Kaim, M., Herz, Z. and Folman, Y. (Bet Dagan, Israel) The effect of GnRh administered to dairy cows during oestrus on plasma LH and

conception in relation to the time of treatment and insemination .............................. 13 Salhab, S.A. and Merilan, C.P. (Columbia, MO, U.S.A.)

Some effects ofcollection equipment, glycerolation, and post-thaw re-equilibration times on the motility and survival of bovine spermatozoa .......................................... 53

Santacreu, M.A., s e e Garcia-Ximenez, F. et al. Saror, D.I., s e e Sekoni, V.O. et al. Schofield, S.A., Phillips, C.J.C. and Owens, A.R. (Bangor, Gt~ Britain)

Variation in the milk production, activity rate and electrical impedance of cervical mucus over the oestrous period of dairy cows ............................................................. 231

Sekoni, V.O., Saror, D.I., Njoku, C.O. and Kumi-Diaka, J. (Zaria, Nigeria) Effect of novidium (homidium choride) chemotherapy on elevated spermatozoa

morphological abnormalities in the semen of Zebu bulls infected with T r y p a n o s o m a

vivax and T r y p a n o s o m a c o n g o l e n s e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Shelford, J.A., s e e Rajamahendran, R. et al. Shrestha, J.N.B., s e e Langfrod, G.A. and Shrestha, J.N.B.

s e e Fiser, P.S. et al. Spitzer, J.C., s e e Dimmick, M.A. et al. Sumar, J., s e e A d a m s , G.P. et al. Tegegen, A., s e e Mukasa-Mugerwa, E. et al.

s e e Mukasa-Mugerwa, E. et al. Teklu, Y., s e e Mukasa-Mugerwa, E. et al. Tomanek, M., s e e Petr, J. et al. Underhill, K.L., s e e Fiser, P.S. et al. van der Meulen, J., Oudenaarden, C.P.J., Helmond, F.A. (Wageningen, The Netherlands)

and Elsaesser, F. (Neustadt, F.R.G.) Effect ofintra-uterine oestradiol-17fl administration on inter-oestrous interval in the

pig ................................................................................................................................ 305 Vicente, J.S., s e e Garcia-Ximenez, F. et al. Vicente, J.S. and Garcia-Ximenez, F. (Valencia, Spain)

Effects of hCG treatment on morula recovery in the rabbit and their survival after synchronous transfer .................................................................................................... 347

Watson, P.F., Jones, P.S. and Plummer, J.M. (London, Gt. Britain) A quantitative comparison of the spontaneous and ionophore-induced acrosome

eaction in ejaculated ram spermatozoa: the effects of temperature, time and individual ..................................................................................................................... 93

Wetherill, G.Z., s e e Rhind, S.M. et al. Wise, T., Klindt, J., Ford, J.J. and Christenson, R.K. (Clay Center, NE, U.S.A.)

Changes in thymosin 4 and gonadal function during puberty in boars and gilts immunized against estrone .......................................................................................... 139