The effect of using hCG in recipient goats: preliminary results.

NEVES, E. R. P.; CÔRTES, L. R.; BATISTA, R. I. T. P.; RODRIGUES, M. G. K. R.; ARAUJO, M. C. C.; FONSECA, J. F. da

The effect of using hCG in recipient goats: preliminary results.

Autores

NEVES, E. R. P.

CÔRTES, L. R.

BATISTA, R. I. T. P.

RODRIGUES, M. G. K. R.

ARAUJO, M. C. C.

FONSECA, J. F. da

Descripción

This study checked the effect of hCG on pregnancy rate of recipient goats. Multiparous acyclic dairy goats (Alpine/Saanen) from second to third parity order (n=40) were subjected to synchronous estrus induction by use of intravaginal sponges (60 mg of medroxyprogesterone acetate; Progespon®, Zoetis, São Paulo, Brazil) for six days plus 200 IU of equine chorionic gonadotropin (eCG; Sincro-eCG 6000®; Ouro Fino, Cravinhos, Brazil) and 131.5 μg of cloprostenol (Sincrocio®, Ouro Fino, Cravinhos, Brazil) i.m. 24 h before sponge removal. Estrus was monitored twice daily with fertile males (D0 = Day of onset of estrus). Overall pregnancy rate was 63.0% (17/27), being 58.3% (7/12) and 66.7% (10/15) for G-Control and G-hCG, respectively (P > 0.05). Preliminary results showed an interesting pregnancy rate obtained by non-surgical technique while hCG positive effect remained to be checked in large trials in dairy goats.
Edição dos Proceedings 37th Annual Meeting of the Brazilian Embryo Technology Society (SBTE).