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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
08/01/1997 |
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Data da última atualização: |
15/05/2023 |
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Autoria: |
MOULE, G. R.; BRADEN, A. W. H.; MATTNER, P. E. |
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Título: |
Effects of season, nutrition, and hormone treatment on the fructose content of ram semen. |
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Ano de publicação: |
1966 |
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Fonte/Imprenta: |
Australian Journal of Agricultural Research, v. 17, n. 6, p. 923-931, 1966. |
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DOI: |
10.1071/AR9660923 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A marked seasonal fluctuation was found over 2 years in the concentration of seminal fructose, and in the total amount per ejaculate, in Merino and Romney Marsh rams at pasture. Values were high in autumn, low in spring. No such fluctuation was observed in rams kept on a constant diet under a natural or a reversed annual light cycle; but when the energy intake of the rams was decreased by 30%, there was a sharp decline in the amount of fructose per ejaculate. In castrated rams the amount of fructose per ejaculate was linearly related to log (dose of injected testosterone). In entire rams injections of human chorionic gonadotrophin caused an increase in seminal fructose, but thyroxine injections were without effect. Stilboestrol injected at levels of 25 and 250 µg/day caused marked decreases in seminal fructose. Increasing the frequency of electro-ejaculation from once per 2 weeks to twice weekly caused an increase in seminal fructose. |
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Palavras-Chave: |
Bioquimica seminal; Estaco do ano. |
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Thesagro: |
Frutose; Nutrição; Reprodução; Sêmen. |
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Thesaurus Nal: |
Animal nutrition; Animal reproduction; Ejaculation; Fructose; Rams; Seminal plasma; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01836naa a2200313 a 4500
001 1523393
005 2023-05-15
008 1966 bl uuuu u00u1 u #d
024 7 $a10.1071/AR9660923$2DOI
100 1 $aMOULE, G. R.
245 $aEffects of season, nutrition, and hormone treatment on the fructose content of ram semen.$h[electronic resource]
260 $c1966
520 $aAbstract: A marked seasonal fluctuation was found over 2 years in the concentration of seminal fructose, and in the total amount per ejaculate, in Merino and Romney Marsh rams at pasture. Values were high in autumn, low in spring. No such fluctuation was observed in rams kept on a constant diet under a natural or a reversed annual light cycle; but when the energy intake of the rams was decreased by 30%, there was a sharp decline in the amount of fructose per ejaculate. In castrated rams the amount of fructose per ejaculate was linearly related to log (dose of injected testosterone). In entire rams injections of human chorionic gonadotrophin caused an increase in seminal fructose, but thyroxine injections were without effect. Stilboestrol injected at levels of 25 and 250 µg/day caused marked decreases in seminal fructose. Increasing the frequency of electro-ejaculation from once per 2 weeks to twice weekly caused an increase in seminal fructose.
650 $aAnimal nutrition
650 $aAnimal reproduction
650 $aEjaculation
650 $aFructose
650 $aRams
650 $aSeminal plasma
650 $aSheep
650 $aFrutose
650 $aNutrição
650 $aReprodução
650 $aSêmen
653 $aBioquimica seminal
653 $aEstaco do ano
700 1 $aBRADEN, A. W. H.
700 1 $aMATTNER, P. E.
773 $tAustralian Journal of Agricultural Research$gv. 17, n. 6, p. 923-931, 1966.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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