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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: |
03/07/2023 |
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Autoria: |
LAMOND, D. R. |
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Título: |
Quantitative studies of the interaction between progesterone and pregnant mare serum on ovarian function in the ewe. |
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Ano de publicação: |
1964 |
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Fonte/Imprenta: |
Journal of Reproduction and Fertility, v. 7, n. 2, p. 171-183, 1964. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Injections of progesterone were given to ewes to suppress ovarian cycles; pregnant mare serum gonadotrophin (PMS) was administered within 2 days of the final injection of progesterone. Oestrus, numbers of ovulations and follicle growth were observed during the week following treatment. In some experiments, ewes were mated to fertile rams and fertility and fecundity were recorded. Experiments were carried out at different stages of the breeding season. Relationships between methods of suppression of ovarian cycles (dose and frequency of injections of progesterone) and methods of ovarian stimulation (dose and time of administration of PMS in relation to the final progesterone injection) for each of the responses were examined. The most important finding was that for comparable dosage levels of PMS, the numbers of ovulations were greater after progesterone injections on alternate days than after daily injections. Stage of the breeding season and introduction of rams influenced the results. |
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Palavras-Chave: |
Sincronizacao. |
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Thesagro: |
Ciclo Estral; Ovino; Reprodução. |
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Thesaurus Nal: |
Animal fertility; Estrus; Gonadotropins; Hormones; Horses; Humans; Ovarian follicles; Pregnancy; Reproduction; Sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01820naa a2200289 a 4500
001 1523112
005 2023-07-03
008 1964 bl uuuu u00u1 u #d
100 1 $aLAMOND, D. R.
245 $aQuantitative studies of the interaction between progesterone and pregnant mare serum on ovarian function in the ewe.$h[electronic resource]
260 $c1964
520 $aAbstract: Injections of progesterone were given to ewes to suppress ovarian cycles; pregnant mare serum gonadotrophin (PMS) was administered within 2 days of the final injection of progesterone. Oestrus, numbers of ovulations and follicle growth were observed during the week following treatment. In some experiments, ewes were mated to fertile rams and fertility and fecundity were recorded. Experiments were carried out at different stages of the breeding season. Relationships between methods of suppression of ovarian cycles (dose and frequency of injections of progesterone) and methods of ovarian stimulation (dose and time of administration of PMS in relation to the final progesterone injection) for each of the responses were examined. The most important finding was that for comparable dosage levels of PMS, the numbers of ovulations were greater after progesterone injections on alternate days than after daily injections. Stage of the breeding season and introduction of rams influenced the results.
650 $aAnimal fertility
650 $aEstrus
650 $aGonadotropins
650 $aHormones
650 $aHorses
650 $aHumans
650 $aOvarian follicles
650 $aPregnancy
650 $aReproduction
650 $aSheep
650 $aCiclo Estral
650 $aOvino
650 $aReprodução
653 $aSincronizacao
773 $tJournal of Reproduction and Fertility$gv. 7, n. 2, p. 171-183, 1964.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | PIOVEZAN, U.; KRAHÔ, F. T.; HERRERA, H. M.; DINIZ NETO, J. V.; AVELLAR, A. L. F. de; DESBIEZ, A. L. J.; DIAS, T. A. B. Caça em comunidades tradicionais: conservação x preservação. In: CONGRESSO BRASILEIRO DE ZOOTECNIA - ZOOTEC, 20., 2010, Palmas. Sustentabilidade e produção animal: anais das palestras. Araguaiana: Universidade Federal de Tocantins: Associação Brasileira de Zootecnistas, 2010. p. 99-108.| Tipo: Artigo em Anais de Congresso |
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