Anim Reprod, 391-395, October/December, 2006 Amniotic fluid cytology at parturition from Nelore calves conceived by artificial insemination, embryo transfer, or in vitro production C.F. Moya, N.C. Prestes, M. Piagentini, N.S. Rocha

Anim Reprod, 396-402, October/December, 2006 Effects of early weaning and progesterone-estradiol treatments on postpartum reproductive efficiency of grazing anestrous beef cows T. de Castro, D. Ibarra, L. Valdez, M. Rodriguez, N. Benquet, F. Garcia Lagos, E. Rubianes

Anim Reprod, 403-409, October/December, 2006 In vitro culture of ovine primordial follicles in media supplemented with coconut water S.H.F. Costa, R.R. Santos, A.P.R. Rodrigues, J.R.V. Silva, J.J.H. Celestino, M.H.T. Matos, E.R. Andrade, F.S. Martins, J.K. Dantas, O.M. Ohashi, J.R. Figueiredo

Anim Reprod, 410-414, October/December, 2006 Effects of hCG on progesterone concentrations and fertility in cyclic, lactating Alpine goats J.F. Fonseca, V.V. Maffili, M.T. Rodrigues, A.D.F. Santos, H. Rovay, A. Pinto Neto, F.Z. Brandão, C.A.A. Torres

Anim Reprod, 415-422, October/December, 2006 Histological and ultrastructural features of caprine preantral follicles after in vitro culture in the presence or absence of indole-3-acetic acid M.H.T. Matos, R. van den Hurk, F.S. Martins, R.R. Santos, M.C.A. Luque, J.R.V. Silva, J.J.H. Celestino, S.N. Báo, J.R. Figueiredo

Anim Reprod, 423-430, October/December, 2006 The sex ratio of in vitro produced bovine embryos is affected by the method of sperm preparation M.G.T. Rheingantz, L.M.C. Pegoraro, O.A. Dellagostin, A.M. Pimentel, M.L. Bernardi, J.C. Deschamps

Anim Reprod, 431-438, October/December, 2006 Age-related changes in scrotal circumference and some semen characteristics in Awassi rams M.J. Tabbaa, R.T. Kridli, A. Al-Ghalban, F.S. Barakeh

Anim Reprod, 439-445, October/December, 2006 Oxygen tension in IVM and IVF of bovine oocytes: effect on embryonic development and pregnancy rate F.G. Leivas, D.S. Brum, W.P Saliba, M.T.T. Alvim, M.L. Bernardi, M.I.B. Rubin, C.A.M. Silva

Anim Reprod, 446-451, October/December, 2006 Author Index

Anim Reprod, 452-452, October/December, 2006 Editorial Board and Journal Information