Data/hora: 03/06/2024 02:10:32

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Nacional - A
Data corrente: | 10/11/2005
Data da última atualização: | 30/01/2013
Autoria: | FONSECA, J. F. da; TORRES, C. A. A.; COSTA, E. P.; MAFFILI, V. V.; CARVALHO, G. R.; ALVES, N. G.; RUBERT, M. A.
Afiliação: | JEFERSON FERREIRA DA FONSECA, CNPC; UFV; UFV; UFV; UFV; UFV; UFV.
Título: | Progesterone profile and reproductive performance of estrous-induced, Alpine goats given hCG fire days after breeding.
Ano de publicação: | 2005
Fonte/Imprenta: | Animal Reproduction, Belo Horizonte, v. 2, n. 1, p. 55-59, jan./mar. 2005.
Idioma: | Inglês
Conteúdo: | The objective of this study was to investigate lhe effect of hCG administration tive days after breed- ing on plasma progesterone concentration (P4) and reproductive performance of estrous-induced Alpine goats. A total of 42 lactating does were treated with intravaginal sponges (MAP, 60 mg) for 9 d plus 200 lU eCG and 22.5 mg d-cloprostenol 24 h before sponge removal. After detection of estrus (day of estrus = day 0) and breeding, females were randomly assigned into two treatments (T1 and T2). In T1 (n=19) and T2 (n=18) lhe animaIs received intramuscular injection of 1 ml of saline solution (control) or 250 lU hCG, respectively, 5 d after breeding. P4 (ng/ml) was recorded from blood sampled on days O, 5, 7, 13, 17, 21, 28 and 45 after breeding. Animals were scanned with lhe aid of transrectal ultra-sound (5 MHz probe) on days 35 and 70 after breeding, for diagnosis of pregnancy. P4 was higher in lhe hCG-treated than the control animaIs only at day 45 (P < 0.05). No effect of treatment on pregnancy and kidding rales, gestation period, prolificacy and fetal weight was recorded (P > 0.05). Results of this study suggest that hCG administration 5 d after breeding may alter the luteal function but not reproductive performance in estrous-induced lactating goats.
Palavras-Chave: | Goat; hCG; Preformance reprodutiva.
Thesagro: | Caprino; Endocrinologia; Progesterona; Reprodução Animal.
Thesaurus Nal: | Progesterone; Reproductive performance.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/75518/1/API-Progesterone-profile.pdf
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (18086-1) - UPC - AP - PP -  -  -  - DIS