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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
05/07/2023 |
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Autoria: |
OTT, R. S.; NELSON, D. R.; HIXON, J. E. |
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Título: |
Effect of presence of the male on initiaton of oestrus cicly activity of goats. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Theriogenology, v. 13, n. 2, p. 183-190, 1980. |
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DOI: |
10.1016/0093-691x(80)90127-2. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Serum progesterone concentrations and behavioral estrus were determined in two groups of 17 mixed breed dairy does at the beginning of the breeding season. The treatment group was pastured adjacent to two mature bucks while two teaser bucks ran with the group. The control group was pastured without exposure to bucks. Goats were observed for estrus daily for 35 days and samples of jugular blood were collected every other day for radioimmunoassay of progesterone. Signs of estrus were observed in 16 of 17 does in the treatment group within a mean +/- S.E. of 5.5 +/- 1.3 days after introduction of the bucks. Thirteen does demonstrated a progesterone profile characteristic of a normal estrous cycle with peak progesterone concentrations of 5.9 +/- 0.5 ng/ml. Signs of behavioral estrus were not observed in the control group. One control doe demonstrated a progesterone profile characteristic of a normal estrous cycle attaining a peak progesterone concentration of 3.9 ng/ml. Progesterone concentrations in the remaining 16 control does were at or near the lower limits of sensitivity of the assay for the duration of the experiment. Fifteen of the control does exhibited estrus within 7 +/- 1.5 days after exposure to bucks at the end of the experiment. These results clearly demonstrated a profound influence of the male on estrous cycle activity during the beginning of the breeding season. |
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Thesagro: |
Caprino; Ciclo Estral; Reprodução. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01969naa a2200193 a 4500
001 1519667
005 2023-07-05
008 1980 bl uuuu u00u1 u #d
024 7 $a10.1016/0093-691x(80)90127-2.$2DOI
100 1 $aOTT, R. S.
245 $aEffect of presence of the male on initiaton of oestrus cicly activity of goats.$h[electronic resource]
260 $c1980
520 $aAbstract: Serum progesterone concentrations and behavioral estrus were determined in two groups of 17 mixed breed dairy does at the beginning of the breeding season. The treatment group was pastured adjacent to two mature bucks while two teaser bucks ran with the group. The control group was pastured without exposure to bucks. Goats were observed for estrus daily for 35 days and samples of jugular blood were collected every other day for radioimmunoassay of progesterone. Signs of estrus were observed in 16 of 17 does in the treatment group within a mean +/- S.E. of 5.5 +/- 1.3 days after introduction of the bucks. Thirteen does demonstrated a progesterone profile characteristic of a normal estrous cycle with peak progesterone concentrations of 5.9 +/- 0.5 ng/ml. Signs of behavioral estrus were not observed in the control group. One control doe demonstrated a progesterone profile characteristic of a normal estrous cycle attaining a peak progesterone concentration of 3.9 ng/ml. Progesterone concentrations in the remaining 16 control does were at or near the lower limits of sensitivity of the assay for the duration of the experiment. Fifteen of the control does exhibited estrus within 7 +/- 1.5 days after exposure to bucks at the end of the experiment. These results clearly demonstrated a profound influence of the male on estrous cycle activity during the beginning of the breeding season.
650 $aCaprino
650 $aCiclo Estral
650 $aReprodução
700 1 $aNELSON, D. R.
700 1 $aHIXON, J. E.
773 $tTheriogenology$gv. 13, n. 2, p. 183-190, 1980.
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| 1. |  | FREITAS, M. A. de; BOSSA, M. B.; FRANCA, M. N. P.; PIEROZZI JUNIOR, I.; OLIVEIRA, L. H. M. de. Organização e representação do conhecimento agropecuário: alinhando o PLN e a cognição humana em itinerários metodológicos semiautomatizados. In: MOSTRA DE ESTAGIÁRIOS E BOLSISTAS DA EMBRAPA INFORMÁTICA AGROPECUÁRIA, 9., 2013, Campinas. Resumos... Brasília, DF: Embrapa, 2013. p. 13-16.| Tipo: Resumo em Anais de Congresso |
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