Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
20/09/2017 |
Data da última atualização: |
20/09/2017 |
Autoria: |
CUPPS, P. T.; MCGOWAN, B.; RAHLMANN, D. F.; REDDON, A. R.; WEIR, W. C. |
Título: |
Seasonal changes in the semen of rams. |
Ano de publicação: |
1960 |
Fonte/Imprenta: |
Journal of Animal Science, v. 19, n. 1, p. 208-213, Feb. 1960. |
DOI: |
10.2527/jas1960.191208x |
Idioma: |
Inglês |
Conteúdo: |
Semen collected from six Suffolk, one Hampshire, and one Rambouillet ram with either an electroejaculator or artificial vagina showed similar seasonal changes in volume of ejaculate, spermatozoa concentration, motility, percentage live spermatozoa, percentage abnormal spermatozoa, and fructose and citric acid concentration. One Rambouillet ram showed a reversed seasonal pattern in fructose concentration. The seasonal changes in the characteristics of the semen were associated with seasonal changes in light and maximum daily temperature. Injections of testosterone in one ram increased fructose concentration in the semen. Chorionic gonadotropin had no effect on fructose concentration. The seasonal effects associated with high temperature affected the spermatogenic function of the testis without changing fructose concentration in the semen. |
Thesagro: |
Sêmen. |
Thesaurus Nal: |
Gonadotropins; Rams; Sheep; Testosterone. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01460naa a2200241 a 4500 001 2075950 005 2017-09-20 008 1960 bl uuuu u00u1 u #d 024 7 $a10.2527/jas1960.191208x$2DOI 100 1 $aCUPPS, P. T. 245 $aSeasonal changes in the semen of rams. 260 $c1960 520 $aSemen collected from six Suffolk, one Hampshire, and one Rambouillet ram with either an electroejaculator or artificial vagina showed similar seasonal changes in volume of ejaculate, spermatozoa concentration, motility, percentage live spermatozoa, percentage abnormal spermatozoa, and fructose and citric acid concentration. One Rambouillet ram showed a reversed seasonal pattern in fructose concentration. The seasonal changes in the characteristics of the semen were associated with seasonal changes in light and maximum daily temperature. Injections of testosterone in one ram increased fructose concentration in the semen. Chorionic gonadotropin had no effect on fructose concentration. The seasonal effects associated with high temperature affected the spermatogenic function of the testis without changing fructose concentration in the semen. 650 $aGonadotropins 650 $aRams 650 $aSheep 650 $aTestosterone 650 $aSêmen 700 1 $aMCGOWAN, B. 700 1 $aRAHLMANN, D. F. 700 1 $aREDDON, A. R. 700 1 $aWEIR, W. C. 773 $tJournal of Animal Science$gv. 19, n. 1, p. 208-213, Feb. 1960.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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