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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
01/08/1992 |
Data da última atualização: |
20/06/2023 |
Autoria: |
FORD, H. M.; NANCARROW, C. D.; FINDLAY, J. K. |
Título: |
Effect of anaesthesia on ovarian follicular development and ovulation in the sheep subsequent to prostaglandin-induced luteolysis. |
Ano de publicação: |
1978 |
Fonte/Imprenta: |
Journal Endocrinology, v. 78, n. 3, p. 321-327, 1978. |
Idioma: |
Inglês |
Conteúdo: |
Prostaglandi analogues were used to induce luteal regression simutaneously in a number of ewes, thereby synchronizing the final stages of follicular maturation in these animals. Some of the ewes were anaesthetized for 24 h immediately after the injection of prostaglandin (experiment 1), and others for 15 h, starting 24 h after the injection of prostaglandin (experiment 2). In both experiments administration of anaesthetic significantly delayed the onset of oestrus and the time of ovulation relative to prostaglandin-treated control animals. The results from assays of blood samples collected at regular intervals in experiment 1 indicated that the preovulatory peak in the concentration of LH and the periovulatory changes in the concentration of FSH were similarlydelayed and that during anaesthesia the level of LH was significantly reduced. It is suggested that the reduced level of LH, which probably resulted from a reduction in the secretion of releasing factor due to anaesthesia, failed to support oestrogen production by the Graafian follicle(s), thereby delaying the occurrence of oestrus and ovulation. |
Palavras-Chave: |
Drug effects. |
Thesagro: |
Endocrinologia; Fisiologia; Ovino; Reprodução. |
Thesaurus Nal: |
Cloprostenol; Endocrinology; Estrus; Estrus synchronization; Ovarian follicles; Ovulation; Pentobarbital; Pharmacology; Pregnancy; Prostaglandin-F synthase; Reproduction; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02106naa a2200349 a 4500 001 1520041 005 2023-06-20 008 1978 bl uuuu u00u1 u #d 100 1 $aFORD, H. M. 245 $aEffect of anaesthesia on ovarian follicular development and ovulation in the sheep subsequent to prostaglandin-induced luteolysis.$h[electronic resource] 260 $c1978 520 $aProstaglandi analogues were used to induce luteal regression simutaneously in a number of ewes, thereby synchronizing the final stages of follicular maturation in these animals. Some of the ewes were anaesthetized for 24 h immediately after the injection of prostaglandin (experiment 1), and others for 15 h, starting 24 h after the injection of prostaglandin (experiment 2). In both experiments administration of anaesthetic significantly delayed the onset of oestrus and the time of ovulation relative to prostaglandin-treated control animals. The results from assays of blood samples collected at regular intervals in experiment 1 indicated that the preovulatory peak in the concentration of LH and the periovulatory changes in the concentration of FSH were similarlydelayed and that during anaesthesia the level of LH was significantly reduced. It is suggested that the reduced level of LH, which probably resulted from a reduction in the secretion of releasing factor due to anaesthesia, failed to support oestrogen production by the Graafian follicle(s), thereby delaying the occurrence of oestrus and ovulation. 650 $aCloprostenol 650 $aEndocrinology 650 $aEstrus 650 $aEstrus synchronization 650 $aOvarian follicles 650 $aOvulation 650 $aPentobarbital 650 $aPharmacology 650 $aPregnancy 650 $aProstaglandin-F synthase 650 $aReproduction 650 $aSheep 650 $aEndocrinologia 650 $aFisiologia 650 $aOvino 650 $aReprodução 653 $aDrug effects 700 1 $aNANCARROW, C. D. 700 1 $aFINDLAY, J. K. 773 $tJournal Endocrinology$gv. 78, n. 3, p. 321-327, 1978.
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2. |  | CLAUDINO, M. R.; MARTINS, P. de L.; SOUSA, G. R. M. de; SOARES, T. da C.; BRITO NETO, J. F. de; BELTRAO, N. E. de M. Atenuação do estresse salino em plantas de gergelim cultivadas em casa de vegetação. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p.263Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Algodão. |
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3. |  | SOUSA, G. R. M. de; MEDEIROS, E. P. de; SANTO, M. B. H.; ALMEIDA, P. B. A. de; FRANÇA, C. P. de; BARROS, T. de F. S. Identificação da pluma de algodão colorido usando a espectroscopia no visível e infravermelho próximo (VIS/NIR) e análise de componentes principais (PCA). In: CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 50Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Algodão. |
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4. |  | BARROS, T. de F. S.; MEDEIROS, E. P. de; ALMEIDA, P. B. A. de; SOUSA, G. R. M. de; ARRIEL, N. H. C.; QUEIROZ, M. F. de; MENDONCA, S.; RIBEIRO, J. A. de A.; FERNANDES, P. D. Determinação do perfil lipídico das espécies: pinhão manso, pinhão bravo e pinhão roxo. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 401Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroenergia; Embrapa Algodão. |
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Registros recuperados : 4 | |
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