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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
09/04/1996 |
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Data da última atualização: |
03/04/2017 |
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Autoria: |
RISCO, C. A.; CHENOWETH, P. J.; LARSEN, R. E.; VELEZ, J.; SHAW, N.; TRAN, T.; CHASE JUNIOR, C. C. |
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Título: |
The effect of gossypol in cottonseed meal on performance and on hematological and semen traits in postpubertal Brahman bulls. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Theriogenology, v.40, n.3, p.629-642, 1993. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of a cottonseed meal diet containing high levels of free gossypol on hematological traits, including erythrocyte osmotic fragility and semen characteristics, were examined during an 11-week period. Eigh Brahman bulls were randomly assigned to 1 of 2 groups. The control group (n=4) was fed a mixture of soybean meal and corn. The treated group (n=4) was fed a mixture of cottonseed meal and corn. Both groups were allowed hay free choice. The treated group consumed 8.2 g of free gossypol per bull per day. Th percentage of normal spermatozoa was lower (P<0.01) in the treated than in the control group from Weeks 5 (49+-9.8 vs 83+-3.2%), which was primarily influenced by changes in mid piece morphology in the treated bulls. Erythrocyte osmotic fragility was higher (P<0.001) in the treated than in the control group over the entire study period, althrought group values diverged more acutely from Week 7 of treatment. Sperm motility was lower (P=0.04) in treated bulls than in control bulls at Week 9 (52+-9.8 vs 82+-6.2%). These data suggested that concurrent discernable changes in bull erythrocyte osmotic fragility and in semen characteristics can occur following commencement of a diet containing 8.2g of free gossypol per day. |
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Palavras-Chave: |
Bull. |
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Thesagro: |
Animal; Reprodução; Sêmen; Touro. |
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Thesaurus Nal: |
reproduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01964naa a2200265 a 4500
001 1788073
005 2017-04-03
008 1993 bl --- 0-- u #d
100 1 $aRISCO, C. A.
245 $aThe effect of gossypol in cottonseed meal on performance and on hematological and semen traits in postpubertal Brahman bulls.
260 $c1993
520 $aThe effects of a cottonseed meal diet containing high levels of free gossypol on hematological traits, including erythrocyte osmotic fragility and semen characteristics, were examined during an 11-week period. Eigh Brahman bulls were randomly assigned to 1 of 2 groups. The control group (n=4) was fed a mixture of soybean meal and corn. The treated group (n=4) was fed a mixture of cottonseed meal and corn. Both groups were allowed hay free choice. The treated group consumed 8.2 g of free gossypol per bull per day. Th percentage of normal spermatozoa was lower (P<0.01) in the treated than in the control group from Weeks 5 (49+-9.8 vs 83+-3.2%), which was primarily influenced by changes in mid piece morphology in the treated bulls. Erythrocyte osmotic fragility was higher (P<0.001) in the treated than in the control group over the entire study period, althrought group values diverged more acutely from Week 7 of treatment. Sperm motility was lower (P=0.04) in treated bulls than in control bulls at Week 9 (52+-9.8 vs 82+-6.2%). These data suggested that concurrent discernable changes in bull erythrocyte osmotic fragility and in semen characteristics can occur following commencement of a diet containing 8.2g of free gossypol per day.
650 $areproduction
650 $aAnimal
650 $aReprodução
650 $aSêmen
650 $aTouro
653 $aBull
700 1 $aCHENOWETH, P. J.
700 1 $aLARSEN, R. E.
700 1 $aVELEZ, J.
700 1 $aSHAW, N.
700 1 $aTRAN, T.
700 1 $aCHASE JUNIOR, C. C.
773 $tTheriogenology$gv.40, n.3, p.629-642, 1993.
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Registro original: |
Embrapa Pantanal (CPAP) |
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