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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: |
27/01/2015 |
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Data da última atualização: |
10/01/2025 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
BALARO, M. F. A.; BRANDÃO, F. Z.; PENEIRAS, A. B. V.; OBA, E.; FONSECA, J. F. da; ALMOSNY, N. R. P.; CARDOSO, E. da C. |
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Afiliação: |
MARIO FELIPE ALVAREZ BALARO, UNIVERSIDADE FEDERAL FLUMINENSE; FELIPE ZANDONADI BRANDÃO, UNIVERSIDADE FEDERAL FLUMINENSE; ANNA BEATRIZ VELTRI PENEIRAS, UNIVERSIDADE FEDERAL FLUMINENSE; EUNICE OBA, UNIVERSIDADE DO ESTADO DE SÃO PAULO; JEFERSON FERREIRA DA FONSECA, CNPC; NÁDIA REGINA PEREIRA ALMOSNY, UNIVERSIDADE FEDERAL FLUMINENSE; ELYZABETH DA CRUZ CARDOSO, UNIVERSIDADE FEDERAL FLUMINENSE. |
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Título: |
Reproductive performance, metabolic and hormonal profiles of Santa Inês ewes in winter and summer under tropical conditions. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Tropical Animal Health and Production, v. 47, n. 3, p. 627-631, Mar. 2015. |
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DOI: |
10.1007/s11250-015-0757-z |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The study aimed to evaluate the reproductive, metabolic and hormonal profiles of Santa Inês ewes during winter and summer in the tropical climate of Rio de Janeiro State, Brazil. The ewes (n?=?16) were prepared for induction of synchronised oestrus with a short-term hormonal treatment, and follicular dynamics were assessed with ultrasonography. Blood samples for biochemical and hormonal analyses were collected on days zero, six and eight of the protocol at 7, 13 and 19 h. Reproductive behaviour did not differ (P?>?0.05) between seasons. Based on ultrasonography data, the ovulation rate was 100 % in summer and 81.3 % in winter. Most of the ewes showed double ovulation in summer, and the diameter of the largest and second largest follicles differed (P?MenosAbstract: The study aimed to evaluate the reproductive, metabolic and hormonal profiles of Santa Inês ewes during winter and summer in the tropical climate of Rio de Janeiro State, Brazil. The ewes (n?=?16) were prepared for induction of synchronised oestrus with a short-term hormonal treatment, and follicular dynamics were assessed with ultrasonography. Blood samples for biochemical and hormonal analyses were collected on days zero, six and eight of the protocol at 7, 13 and 19 h. Reproductive behaviour did not differ (P?>?0.05) between seasons. Based on ultrasonography data, the ovulation rate was 100 % in summer and 81.3 % in winter. Most of the ewes showed double ovulation in summer, and the diameter of the largest and second largest follicles differed (P?Mostrar Tudo |
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Palavras-Chave: |
Anoestrus; Indicator organisms; Oestrous cycle; Raça Santa Inês; Seasonality; Sincronizado do cio; Synchronization. |
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Thesagro: |
Ciclo estral; Eficiência reprodutiva; Hormônio animal; Ovelha; Ovino; Progesterona; Reprodução animal. |
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Thesaurus Nal: |
Ewes; Hormones; Progesterone; Reproductive performance; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02857naa a2200433 a 4500
001 2006878
005 2025-01-10
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1007/s11250-015-0757-z$2DOI
100 1 $aBALARO, M. F. A.
245 $aReproductive performance, metabolic and hormonal profiles of Santa Inês ewes in winter and summer under tropical conditions.$h[electronic resource]
260 $c2015
520 $aAbstract: The study aimed to evaluate the reproductive, metabolic and hormonal profiles of Santa Inês ewes during winter and summer in the tropical climate of Rio de Janeiro State, Brazil. The ewes (n?=?16) were prepared for induction of synchronised oestrus with a short-term hormonal treatment, and follicular dynamics were assessed with ultrasonography. Blood samples for biochemical and hormonal analyses were collected on days zero, six and eight of the protocol at 7, 13 and 19 h. Reproductive behaviour did not differ (P?>?0.05) between seasons. Based on ultrasonography data, the ovulation rate was 100 % in summer and 81.3 % in winter. Most of the ewes showed double ovulation in summer, and the diameter of the largest and second largest follicles differed (P?<?0.05) between seasons. Among the biochemical parameters, plasma glucose, plasma urea and serum albumin differed (P?<?0.05) between the study periods. Regarding the hormonal profile, higher serum triiodothyronine, thyroxine and prolactin concentrations (P?<?0.05) were observed in summer. The average progesterone concentrations demonstrated low reproductive seasonality. In conclusion, the reproductive performance of the ewes was superior in summer, and higher levels of plasma glucose and serum albumin during this season may have played a role in the observed ovulation rates. The higher levels of serum prolactin and serum thyroxine in summer demonstrated that these compounds were not involved in the regulatory mechanisms underlying the onset of anoestrus in these Santa Inês ewes under tropical conditions.
650 $aEwes
650 $aHormones
650 $aProgesterone
650 $aReproductive performance
650 $aSheep
650 $aCiclo estral
650 $aEficiência reprodutiva
650 $aHormônio animal
650 $aOvelha
650 $aOvino
650 $aProgesterona
650 $aReprodução animal
653 $aAnoestrus
653 $aIndicator organisms
653 $aOestrous cycle
653 $aRaça Santa Inês
653 $aSeasonality
653 $aSincronizado do cio
653 $aSynchronization
700 1 $aBRANDÃO, F. Z.
700 1 $aPENEIRAS, A. B. V.
700 1 $aOBA, E.
700 1 $aFONSECA, J. F. da
700 1 $aALMOSNY, N. R. P.
700 1 $aCARDOSO, E. da C.
773 $tTropical Animal Health and Production$gv. 47, n. 3, p. 627-631, Mar. 2015.
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Embrapa Caprinos e Ovinos (CNPC) |
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| 1. |  | MEDEIROS, S. do R.; CARVALHO, E. de A.; CONCEIÇÃO, V. D. da; CANCIAN, E. Diagnóstico precoce da "soja louca II" no estado do Pará. In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 12., 2014, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | OLIVEIRA, J. S. F. de; CARVALHO, E. de A.; CONCEIÇÃO, V. D. da; SOUSA, A. M. de; SANTOS, R. C. dos; GOMES JUNIOR, R. A. Epidemia de mancha foliar em viveiro de palma de óleo no estado do Pará. In: CONFERÊNCIA NACIONAL SOBRE DEFESA AGROPECUÁRIA, 4., 2013, Belém, PA. Defesa agropecuária e sustentabilidade. Belém, PA: SBDA, 2014. p. 174-175.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | NASCIMENTO, S. M. C. do; CARVALHO, E. de A.; ISHIDA, A. K. N.; SILVA, J. C. da; CARVALHO, K. B. de A.; CONCEIÇÃO, V. D. da. Diversidade morfológica de colônias de Bacillus sp. In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 3., 2014, Santos. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 4 | |
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