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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: |
05/01/2015 |
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Data da última atualização: |
01/06/2017 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
BALARO, M. F. A.; FONSECA, J. F. da; OBA, E.; CARDOSO, E. da C.; BRANDÃO, F. Z. |
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Afiliação: |
Mario Felipe Alvarez Balaro, Universidade Federal Fluminense (UFF) - Niteroi, RJ, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; Eunice Oba, Universidade do Estado de São Paulo (USP) -Botucatu, SP, Brazil; Elyzabeth da Cruz Cardoso, UFF - Niteroi, RJ, Brazil; Felipe Zandonadi Brandão, UFF - Niteroi, RJ, Brazil. |
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Título: |
Is the Santa Inês sheep a typical non-seasonal breeder in the Brazilian Southeast?. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Tropical Animal Health and Production, Edinburgh, v. 46, n. 8, p. 1533-1537, Dec. 2014. |
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DOI: |
10.1007/s11250-014-0672-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study aimed to characterize the annual reproductive cycle of Santa Inês sheep in the Fluminense lowland region (latitude 22° 27' 45? south, Rio de Janeiro, Brazil) between September 2011 and August 2012. Ten ewes were maintained in a semi-intensive system under natural photoperiods with access to pasture and shelter. Blood samples were collected every 2 weeks to determine plasma progesterone concentrations. The body condition score (BCS) was determined each month. There was no seasonal variation in the plasma progesterone concentration from the months of September to January, April, and May to August. In the months of February and April, the plasma hormone levels were higher than August to November. Seventy percent (7/10) of the sheep studied had short seasonal anestrus. The periods of anestrus were concentrated between the months of September and December (spring season) in 85.7 % (6/7) of the cases evaluated. In these cases, 57.1 % (4/7) also had short periods of reproductive inactivity during other months of the year. The progesterone values obtained in the spring corroborate the higher reproductive anestrus observed in this season. Higher plasma progesterone values were found in summer and autumn with reduction in the winter to lower values in the spring. No changes in the BCS during the study period were observed. Under the studied conditions, the Santa Inês sheep showed a low degree of reproductive seasonality. However, some individual ewes had seasonal anestrus during the spring. Further studies that include management techniques are needed to improve reproductive efficiency without hormone therapy in this breed under tropical conditions. MenosAbstract: This study aimed to characterize the annual reproductive cycle of Santa Inês sheep in the Fluminense lowland region (latitude 22° 27' 45? south, Rio de Janeiro, Brazil) between September 2011 and August 2012. Ten ewes were maintained in a semi-intensive system under natural photoperiods with access to pasture and shelter. Blood samples were collected every 2 weeks to determine plasma progesterone concentrations. The body condition score (BCS) was determined each month. There was no seasonal variation in the plasma progesterone concentration from the months of September to January, April, and May to August. In the months of February and April, the plasma hormone levels were higher than August to November. Seventy percent (7/10) of the sheep studied had short seasonal anestrus. The periods of anestrus were concentrated between the months of September and December (spring season) in 85.7 % (6/7) of the cases evaluated. In these cases, 57.1 % (4/7) also had short periods of reproductive inactivity during other months of the year. The progesterone values obtained in the spring corroborate the higher reproductive anestrus observed in this season. Higher plasma progesterone values were found in summer and autumn with reduction in the winter to lower values in the spring. No changes in the BCS during the study period were observed. Under the studied conditions, the Santa Inês sheep showed a low degree of reproductive seasonality. However, some individual ewes had seasonal ... Mostrar Tudo |
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Palavras-Chave: |
Anoestrus; Cyclicity; Photoperiodicity; Seasonality. |
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Thesagro: |
Ciclo estral; Fotoperiodismo; Ovelha; Ovino; Progesterona; Reprodução animal; Sangue. |
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Thesaurus Nal: |
Blood sampling; Ewes; Progesterone; Reproduction; Reproductive performance; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02762naa a2200385 a 4500
001 2004232
005 2017-06-01
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s11250-014-0672-8$2DOI
100 1 $aBALARO, M. F. A.
245 $aIs the Santa Inês sheep a typical non-seasonal breeder in the Brazilian Southeast?.$h[electronic resource]
260 $c2014
520 $aAbstract: This study aimed to characterize the annual reproductive cycle of Santa Inês sheep in the Fluminense lowland region (latitude 22° 27' 45? south, Rio de Janeiro, Brazil) between September 2011 and August 2012. Ten ewes were maintained in a semi-intensive system under natural photoperiods with access to pasture and shelter. Blood samples were collected every 2 weeks to determine plasma progesterone concentrations. The body condition score (BCS) was determined each month. There was no seasonal variation in the plasma progesterone concentration from the months of September to January, April, and May to August. In the months of February and April, the plasma hormone levels were higher than August to November. Seventy percent (7/10) of the sheep studied had short seasonal anestrus. The periods of anestrus were concentrated between the months of September and December (spring season) in 85.7 % (6/7) of the cases evaluated. In these cases, 57.1 % (4/7) also had short periods of reproductive inactivity during other months of the year. The progesterone values obtained in the spring corroborate the higher reproductive anestrus observed in this season. Higher plasma progesterone values were found in summer and autumn with reduction in the winter to lower values in the spring. No changes in the BCS during the study period were observed. Under the studied conditions, the Santa Inês sheep showed a low degree of reproductive seasonality. However, some individual ewes had seasonal anestrus during the spring. Further studies that include management techniques are needed to improve reproductive efficiency without hormone therapy in this breed under tropical conditions.
650 $aBlood sampling
650 $aEwes
650 $aProgesterone
650 $aReproduction
650 $aReproductive performance
650 $aSheep
650 $aCiclo estral
650 $aFotoperiodismo
650 $aOvelha
650 $aOvino
650 $aProgesterona
650 $aReprodução animal
650 $aSangue
653 $aAnoestrus
653 $aCyclicity
653 $aPhotoperiodicity
653 $aSeasonality
700 1 $aFONSECA, J. F. da
700 1 $aOBA, E.
700 1 $aCARDOSO, E. da C.
700 1 $aBRANDÃO, F. Z.
773 $tTropical Animal Health and Production, Edinburgh$gv. 46, n. 8, p. 1533-1537, Dec. 2014.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 263 | |
| 5. |  | CAVALCANTI, A. dos S.; BRANDÃO, F. Z.; NOGUEIRA, L. A. G.; FONSECA, J. F. da. Effects of GnRH administration on ovulation and fertility in ewes subjected to estrous synchronization. Revista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 6, p. 1412-1418, Jun. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 9. | | FONSECA, J. F. da; CRUZ, R. C.; MANCIO, A. B.; ESTEVES, L. V.; BRANDÃO, F. Z.; FACO, O. Comportamento estral, dinâmica ovulatória e descarga de muco cervical em cabras Toggenburg submetidas à indução de estro com diferentes gonadotrofinas. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012. SBTE 067. p. 361.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 12. | | VENTURI, S. S.; SOARES, I. R.; RODRIGUES, A. L. R.; CARDOSO, E. S.; FONSECA, J. F. da; BRANDÃO, F. Z. Efeito da suplementação calórica sobre a taxa de ovulação e parâmetros metabólicos em ovelhas. In: CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 19., 2011, Recife. Anais... Belo Horizonte: CBRA, 2011. p. 270. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 14. | | PINNA, A. E.; BRANDÃO, F. Z.; CAVALCANTI, A. S.; BORGES, A. M.; LOUREIRO, A. A. A.; FONSECA, J. F. da. Fertilidade de ovelhas cíclicas submetidas à sincronização do estro utilizando implantes intravaginais (CIDR) novos ou reutilizados. Acta Scientiae Veterinariae Porto Alegre, v. 36, Supl. 2, p. s581, 2008. Edição dos Resumos XXII Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Guarujá, SP, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 15. | | SOUZA, J. M. G.; CORDEIRO, R. G.; FONSECA, J. F. da; BRANDÃO, F. Z.; BRUSCHI, J. H. Hormonal induction of lactation in non-pregnant Saanen and Toggenburg goats. In: INTERNATIONAL CONFERENCE ON GOATS, 9.; REUNIÓN NACIONAL SOBRE CAPRINOCULTURA, 23., 2008, Querétaro, México. Sustainable goat production: challenges and opportunities of small and large enterprises; proceedings. Querétaro: International Goat Association, 2008. p. 124. Abstract 123.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 17. | | BALARO, M. F. A.; SANTOS, A. S.; MOURA, L. F. G. M.; FONSECA, J. F. da; BRANDÃO, F. Z. Luteal dynamic and functionality assessment in dairy goats by luteal blood flow, luteal biometry, and hormonal assay. Theriogenology, v. 95, p. 118-126, June, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 18. | | SANTOS, G. B.; BRANDÃO, F. Z.; CARVALHO, B. C. de; MACHADO, F. S.; VARAGO, F. C.; VARGAS, M. W. População folicular e produção de oócitos em vacas primíparas 3/4 e 7/8 Holandês x Gir no pós-parto. CONGRESSO BRASILEIRO DE REPRODUÇÃO ANIMAL, 20., 2013, Uberlandia. Anais... Belo Horizonte: CBRA, 2013. p. 187.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 19. | | PINTO, P. H. N.; FREITAS, J. A. de; BRANDÃO, F. Z.; ESTEVES, L. V.; FONSECA, J. F. da. Possíveis impactos do projeto: "Uso de sêmen resfriado e inseminação artificial em caprinos leiteiros na República de Cabo Verde". Synergismus scyentifica UTFPR, Pato Branco, v. 7, n. 1, p. 1-3, 2012. Anais do 15o. Simpósio Paranaense de Ovinocultura, 3o. Simpósio Paranaense de Caprinocultura, 3o. Simpósio Sul Brasileiro de Ovinos e Caprinos, Pato Branco, PR, out., 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 20. | | BALARO, M. F. A.; FONSECA, J. F. da; OBA, E.; CARDOSO, E. da C.; BRANDÃO, F. Z. Is the Santa Inês sheep a typical non-seasonal breeder in the Brazilian Southeast?. Tropical Animal Health and Production, Edinburgh, v. 46, n. 8, p. 1533-1537, Dec. 2014.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 263 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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