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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
27/01/2015 |
Data da última atualização: |
18/10/2019 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
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. |
Afiliação: |
Mario Felipe Alvarez Balaro, Universidade Federal Fluminense (UFF) - Niterói, RJ, Brazil; Felipe Zandonadi Brandão, UFF - Niterói, RJ, Brazil; Anna Beatriz Veltri Peneiras, UFF - Niterói, RJ, Brazil; Eunice Oba, Universidade do Estado de São Paulo (USP) - Botucatu, SP, Brazil; Jeferson Ferreira da Fonseca, CNPC; Nádia Regina Pereira Almosny, UFF - Niterói, RJ, Brazil; Elyzabeth da Cruz Cardoso, UFF - Niterói, RJ, Brazil. |
Título: |
Reproductive performance, metabolic and hormonal profiles of Santa Inês ewes in winter and summer under tropical conditions. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Tropical Animal Health and Production, v. 47, N. 3, p. 627-631, Mar. 2015. |
DOI: |
10.1007/s11250-015-0757-z |
Idioma: |
Inglês |
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?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. 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?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... Mostrar Tudo |
Palavras-Chave: |
Anoestrus; Indicator organisms; Oestrous cycle; Raça Santa Inês; Seasonality; Sincronizado do cio; Synchronization. |
Thesagro: |
Ciclo estral; Eficiência reprodutiva; Hormônio animal; Ovelha; Ovino; Progesterona; Reprodução animal. |
Thesaurus Nal: |
Ewes; Hormones; Progesterone; Reproductive performance; Sheep. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02857naa a2200433 a 4500 001 2006878 005 2019-10-18 008 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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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
28/05/1999 |
Data da última atualização: |
19/02/2015 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
IRGANG, R.; FAVERO, J. A.; SCHEID, I. R.; WENTZ, I. |
Afiliação: |
RENATO IRGANG, CNPSA; JERÔNIMO ANTONIO FÁVERO, CNPSA; ISABEL REGINA SCHEID, CNPSA; IVO WENTZ, CNPSA. |
Título: |
Fêmeas cruzadas ou F1 recomendadas para a produção de suínos para o abate. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
Concórdia: EMBRAPA-CNPSA, 1992. |
Páginas: |
3 p. |
Série: |
(EMBRAPA-CNPSA. Comunicado Técnico, 184). |
Idioma: |
Português |
Palavras-Chave: |
Melhoramento genético; Slaugther. |
Thesagro: |
Abate; Suíno. |
Thesaurus NAL: |
breeding; swine. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/58663/1/CUsersPiazzonDocuments184.pdf
|
Marc: |
LEADER 00615nam a2200229 a 4500 001 1433959 005 2015-02-19 008 1992 bl uuuu u0uu1 u #d 100 1 $aIRGANG, R. 245 $aFêmeas cruzadas ou F1 recomendadas para a produção de suínos para o abate. 260 $aConcórdia: EMBRAPA-CNPSA$c1992 300 $a3 p. 490 $a(EMBRAPA-CNPSA. Comunicado Técnico, 184). 650 $abreeding 650 $aswine 650 $aAbate 650 $aSuíno 653 $aMelhoramento genético 653 $aSlaugther 700 1 $aFAVERO, J. A. 700 1 $aSCHEID, I. R. 700 1 $aWENTZ, I.
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