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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: |
12/12/2023 |
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Autoria: |
LISHMAN, A. W.; STIELAU, W. J.; WART; C. E.; BOTHA, W. A. |
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Título: |
Nutrition of the ewe and the ovarian sensitivity to gonadotrophin. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Agroanimalue, v. 6, p. 7-11, 1974. |
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Idioma: |
Inglês |
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Conteúdo: |
The sensitivity of the ovary to gonadotrophic stimulation was tested in Merino and crossbred ewes which had been fed so as to either gain (high plane) or lose (low plane) body mass over a fivemonth period. The release of endogenous luteinizing hormone (LH) was blocked by daily injections of progesterone and the ovaries were stimulated by injecting the ewes with various doses of human chorionic gonadotrophin (HCG). Undernutrition had no marked influence on ovulation, but the ovaries of the ewes on the high plane of nutrition tended to contain more ovarian fluid than on the low plane of feeding. There was also a tendency for ewe~ which gained body mass to exhibit a greater ovarian mass than ewes which were underfed. The crossbred ewes showed a greater response to HCG than the Merino ewes. |
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Palavras-Chave: |
Doses effects; Gonadatrofina; LH. |
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Thesagro: |
Endocrinologia; Fisiologia; Hormônio; Nutrição; Ovino; Reprodução. |
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Thesaurus Nal: |
Ewes; Luteinizing hormone; Ovulation; Progesterone; Reproduction; Ruminant nutrition; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01687naa a2200361 a 4500
001 1520817
005 2023-12-12
008 1974 bl uuuu u00u1 u #d
100 1 $aLISHMAN, A. W.
245 $aNutrition of the ewe and the ovarian sensitivity to gonadotrophin.$h[electronic resource]
260 $c1974
520 $aThe sensitivity of the ovary to gonadotrophic stimulation was tested in Merino and crossbred ewes which had been fed so as to either gain (high plane) or lose (low plane) body mass over a fivemonth period. The release of endogenous luteinizing hormone (LH) was blocked by daily injections of progesterone and the ovaries were stimulated by injecting the ewes with various doses of human chorionic gonadotrophin (HCG). Undernutrition had no marked influence on ovulation, but the ovaries of the ewes on the high plane of nutrition tended to contain more ovarian fluid than on the low plane of feeding. There was also a tendency for ewe~ which gained body mass to exhibit a greater ovarian mass than ewes which were underfed. The crossbred ewes showed a greater response to HCG than the Merino ewes.
650 $aEwes
650 $aLuteinizing hormone
650 $aOvulation
650 $aProgesterone
650 $aReproduction
650 $aRuminant nutrition
650 $aSheep
650 $aEndocrinologia
650 $aFisiologia
650 $aHormônio
650 $aNutrição
650 $aOvino
650 $aReprodução
653 $aDoses effects
653 $aGonadatrofina
653 $aLH
700 1 $aSTIELAU, W. J.
700 1 $aWART
700 1 $aC. E.
700 1 $aBOTHA, W. A.
773 $tAgroanimalue$gv. 6, p. 7-11, 1974.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
