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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
22/03/1996 |
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Data da última atualização: |
14/01/2026 |
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Autoria: |
CURRY, K. C.; BERARDINELLI, J. G.; BURFENING, P. J.; ADAIR, R. |
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Título: |
Selection for reproductive rate in famales and feeding regimen on testicular traits and epididymal sperm reserves in Rambouillet rams. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 11, n. 3, p. 257-265, Aug. 1993. |
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DOI: |
https://doi.org/10.1016/0921-4488(93)90050-R |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objectives of this study were to evaluate whether selection for or against reproductive rate in Rambouillet ewes altered testicular and epididymal characteristics in male offspring, and to examine the interaction of post-weaning feeding regimen and selection line on body weights and testicular and epididymal characteristics. Rams were from lines selected for either low or high reproductive rate and from a random-bred control line. At 10 months of age, rams from each line were assigned to one of two feeding regimens, (i) placed on pasture and fed grass hay for duration of experiment (normal plane; NP) or (ii) continued on a pelleted diet for 7 months then combined with NP rams for the duration of experiment (high plane; HP). Testicular and epididymal traits and epididymal sperm reserves were evaluated at the end of the feeding period. Rams on the HP gained weight more rapidly (P<0.05) and were heavier (P<0.05) at the end of the experiment than rams on the NP. Selection line or interactions of line with feeding regimen did not affect (P>0.10) body weights. Selection line, feeding regimen or their interactions did not affect (P>0.10) scrotal circumference, testicular or epididymal characteristics or epididymal sperm reserves, except that there was a line by feeding regimen interaction (P<0.05) for caput/corpus epididymal weight. These results indicate that selecting for low or high reproductive rate in Rambouillet ewes or feeding a high plane of nutrition after weaning did not alter testicular or epididymal characteristics of mature male offspring. MenosAbstract: The objectives of this study were to evaluate whether selection for or against reproductive rate in Rambouillet ewes altered testicular and epididymal characteristics in male offspring, and to examine the interaction of post-weaning feeding regimen and selection line on body weights and testicular and epididymal characteristics. Rams were from lines selected for either low or high reproductive rate and from a random-bred control line. At 10 months of age, rams from each line were assigned to one of two feeding regimens, (i) placed on pasture and fed grass hay for duration of experiment (normal plane; NP) or (ii) continued on a pelleted diet for 7 months then combined with NP rams for the duration of experiment (high plane; HP). Testicular and epididymal traits and epididymal sperm reserves were evaluated at the end of the feeding period. Rams on the HP gained weight more rapidly (P<0.05) and were heavier (P<0.05) at the end of the experiment than rams on the NP. Selection line or interactions of line with feeding regimen did not affect (P>0.10) body weights. Selection line, feeding regimen or their interactions did not affect (P>0.10) scrotal circumference, testicular or epididymal characteristics or epididymal sperm reserves, except that there was a line by feeding regimen interaction (P<0.05) for caput/corpus epididymal weight. These results indicate that selecting for low or high reproductive rate in Rambouillet ewes or feeding a high plane of nutrition after we... Mostrar Tudo |
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Palavras-Chave: |
Andrologia; Circunferencia escrotal; Epididymal weight; Female selection; Rambouillet ram; Scrotal circumference; Slecao; Sperm reserve. |
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Thesagro: |
Nutrição; Ovino; Reprodução. |
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Thesaurus Nal: |
Rambouillet; Rams; 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 02666naa a2200361 a 4500
001 1517279
005 2026-01-14
008 1993 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/0921-4488(93)90050-R$2DOI
100 1 $aCURRY, K. C.
245 $aSelection for reproductive rate in famales and feeding regimen on testicular traits and epididymal sperm reserves in Rambouillet rams.$h[electronic resource]
260 $c1993
520 $aAbstract: The objectives of this study were to evaluate whether selection for or against reproductive rate in Rambouillet ewes altered testicular and epididymal characteristics in male offspring, and to examine the interaction of post-weaning feeding regimen and selection line on body weights and testicular and epididymal characteristics. Rams were from lines selected for either low or high reproductive rate and from a random-bred control line. At 10 months of age, rams from each line were assigned to one of two feeding regimens, (i) placed on pasture and fed grass hay for duration of experiment (normal plane; NP) or (ii) continued on a pelleted diet for 7 months then combined with NP rams for the duration of experiment (high plane; HP). Testicular and epididymal traits and epididymal sperm reserves were evaluated at the end of the feeding period. Rams on the HP gained weight more rapidly (P<0.05) and were heavier (P<0.05) at the end of the experiment than rams on the NP. Selection line or interactions of line with feeding regimen did not affect (P>0.10) body weights. Selection line, feeding regimen or their interactions did not affect (P>0.10) scrotal circumference, testicular or epididymal characteristics or epididymal sperm reserves, except that there was a line by feeding regimen interaction (P<0.05) for caput/corpus epididymal weight. These results indicate that selecting for low or high reproductive rate in Rambouillet ewes or feeding a high plane of nutrition after weaning did not alter testicular or epididymal characteristics of mature male offspring.
650 $aRambouillet
650 $aRams
650 $aReproduction
650 $aRuminant nutrition
650 $aSheep
650 $aNutrição
650 $aOvino
650 $aReprodução
653 $aAndrologia
653 $aCircunferencia escrotal
653 $aEpididymal weight
653 $aFemale selection
653 $aRambouillet ram
653 $aScrotal circumference
653 $aSlecao
653 $aSperm reserve
700 1 $aBERARDINELLI, J. G.
700 1 $aBURFENING, P. J.
700 1 $aADAIR, R.
773 $tSmall Ruminant Research$gv. 11, n. 3, p. 257-265, Aug. 1993.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 78 | |
| 6. |  | FIDELIS, E. G.; CARVALHO, G. S.; DA SILVA, R. O. da; VALERIO, J. R. Aeneolamia flavilatera (Urich, 1914) (Hemiptera: Cercopidae). In: SANTOS, R. S.; ADAIME, R.; FAZOLIN, M.; SILVA, N. M. da (ed.). Entomologia agrícola e florestal na Amazônia: desafios e oportunidades de pesquisa. Brasília, DF: Embrapa, 2026. cap. 5, p. 57-62.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Corte; Embrapa Recursos Genéticos e Biotecnologia. |
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| 7. | | FIDELIS, E. G.; CARVALHO, G. S.; SILVA, R. O. da; VALERIO, J. R. Aeneolamia reducta montana Fennah, 1949 (Hemiptera: Cercopidae). In: SANTOS, R. S.; ADAIME, R.; FAZOLIN, M.; SILVA, N. M. da (ed.). Entomologia agrícola e florestal na Amazônia: desafios e oportunidades de pesquisa. Brasília, DF: Embrapa, 2026. cap. 6, p. 63-68.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 8. | | QUEVEDO, M.; SANTOS, J.; CALDAS, M.; OLIVEIRA, R.; FIDELIS, E. G.; BENDAHAN, A. B. Avaliação da qualidade dos capins U. Brizantha CV. Marandu e P. Maximum CV. Mombaça ao ataque do Blissus pulcellus na seca e nas chuvas em Alto Alegre, Roraima. In: SEMANA NACIONAL DE CIÊNCIA E TECNOLOGIA, 15., 2020, Boa Vista, RR. Inteligência Artificial: a nova fronteira da ciência brasileira: Boletim de resumos. Boa Vista, RR: 2020. Organizado por Rodrigo Leonardo Costa De Oliveira; Ivanise Maria Rizzatti, Thiago José Costa Alves; Juliane Marques de Souza; Katharine Coimbra Toledo. p. 87-89.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| 9. | | ADAIME, R.; JESUS, C. R. de; LIMA, A. L.; FIDELIS, E. G. Anastrepha suspensa (Loew) (Diptera: Tephritidae). In: FIDELIS, E. G.; LOHMANN, T. R.; SILVA, M. L. da; PARIZZI, P.; BARBOSA, F. F. L. (Ed.). Priorização de pragas quarentenárias ausentes no Brasil. Brasília, DF: Embrapa, 2018. cap. 9, p. 123-136.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amapá; Embrapa Roraima. |
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| 13. | | SANTOS, J.; QUEVEDO, M.; OLIVEIRA, A.; OLIVEIRA, R.; COSTA, D.; FIDELIS, E. G.; BENDAHAN, A. B. Danos em folhas de Brachiaria brizantha CV. Marandu causados pelo primeiro e quarto ínstares da Spodoptera fugiperda. In: SEMANA NACIONAL DE CIÊNCIA E TECNOLOGIA, 15., 2020, Boa Vista, RR. Inteligência Artificial: a nova fronteira da ciência brasileira: Boletim de resumos. Boa Vista, RR: 2020. Organizado por Rodrigo Leonardo Costa De Oliveira; Ivanise Maria Rizzatti, Thiago José Costa Alves; Juliane Marques de Souza; Katharine Coimbra Toledo. p. 128-131.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| 16. | | FIDELIS, E. G.; SILVA, R. O. da; BENDAHAN, A. B.; VALERIO, J. R. Blissus pulchellus Montandon, 1893 (Hemiptera: Blissidae). In: SANTOS, R. S.; ADAIME, R.; FAZOLIN, M.; SILVA, N. M. da (ed.). Entomologia agrícola e florestal na Amazônia: desafios e oportunidades de pesquisa. Brasília, DF: Embrapa, 2026. cap. 16, p. 149-154.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Gado de Corte; Embrapa Recursos Genéticos e Biotecnologia. |
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| 17. | | SILVA, M. L. da; FIDELIS, E. G.; NEGRINI, M.; COLMENAREZ, Y. C. Bactrocera dorsalis (Handel 1912) (Diptera: Tephritidae). In: FIDELIS, E. G.; LOHMANN, T. R.; SILVA, M. L. da; PARIZZI, P.; BARBOSA, F. F. L. (Ed.). Priorização de pragas quarentenárias ausentes no Brasil. Brasília, DF: Embrapa, 2018 510 p. il. p. 137-156| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 78 | |
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