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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
13/12/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA, G. M. F.; COBUCI, J. A.; COSTA, C. N.; ABREU, L. R. A.; MOTA, L. F. M.; PIRES, A. V.; VILLELA, S. D. J.; MARTINS, P. G. M. A. |
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Afiliação: |
Graziela M. F. Rocha, Federal University of Jequitinhonha and Mucuri Valleys; Jaime A. Cobuci, UFRGS; CLAUDIO NAPOLIS COSTA, CNPGL; Luíza R. A. Abreu, Federal University of Jequitinhonha and Mucuri Valleys; Lúcio F. M. Mota, Federal University of Jequitinhonha and Mucuri Valleys; Aldrin V. Pires, Federal University of Jequitinhonha and Mucuri Valleys; Severino D. J. Villela, Federal University of Jequitinhonha and Mucuri Valleys; Paulo G. M. A. Martins, Federal University of Jequitinhonha and Mucuri Valleys. |
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Título: |
Genetic association between stayability, and productive and reproductive traits in Holstein cows. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Animal Production Science, v. 58, n. 10, p. 1788-1793, 2017. |
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DOI: |
10.1071/AN16563 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The objective was to estimate the genetic parameters for the cow?s ability to stay in the herd (stayability) until 48 and 54 months of age (STAY48 and STAY54) and up to 36 and 48 months after the first calving (STAY36ac and STAY48ac), and their associations with 305-day milk production (MP305) in the first lactation, age at first calving and first calving interval, from the first three lactations of cows reared in Brazil and born between 1987 and 2006. The covariance components were estimated by bivariate analyses, using the Bayesian approach. The a posteriori distributions of the components of interest were obtained with the Gibbs sampler. Fixed effect of contemporary group, additive and residual random genetic effect, and age of dam as covariate (linear and quadratic) were included in the analyses. Low heritability values were obtained for most traits, except for STAY48ac and MP305. Genetic correlation estimates between age at first calving and stayability traits were high and positive, except for STAY48ac. In addition, we detected genetic correlations between MP305 and STAY36ac and STAY48ac. In conclusion, we can infer that genetic correlations between MP305, and STAY36ac and STAY48ac indicate that the current focus on selection of animals for improved milk production in the first lactation can lead to genetic gains on longevity, although not expressive. |
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Palavras-Chave: |
Age at first calving. |
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Thesaurus Nal: |
Dairy cattle; Genetic correlation; Longevity. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02181naa a2200265 a 4500
001 2101402
005 2023-01-24
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1071/AN16563$2DOI
100 1 $aROCHA, G. M. F.
245 $aGenetic association between stayability, and productive and reproductive traits in Holstein cows.$h[electronic resource]
260 $c2017
520 $aAbstract The objective was to estimate the genetic parameters for the cow?s ability to stay in the herd (stayability) until 48 and 54 months of age (STAY48 and STAY54) and up to 36 and 48 months after the first calving (STAY36ac and STAY48ac), and their associations with 305-day milk production (MP305) in the first lactation, age at first calving and first calving interval, from the first three lactations of cows reared in Brazil and born between 1987 and 2006. The covariance components were estimated by bivariate analyses, using the Bayesian approach. The a posteriori distributions of the components of interest were obtained with the Gibbs sampler. Fixed effect of contemporary group, additive and residual random genetic effect, and age of dam as covariate (linear and quadratic) were included in the analyses. Low heritability values were obtained for most traits, except for STAY48ac and MP305. Genetic correlation estimates between age at first calving and stayability traits were high and positive, except for STAY48ac. In addition, we detected genetic correlations between MP305 and STAY36ac and STAY48ac. In conclusion, we can infer that genetic correlations between MP305, and STAY36ac and STAY48ac indicate that the current focus on selection of animals for improved milk production in the first lactation can lead to genetic gains on longevity, although not expressive.
650 $aDairy cattle
650 $aGenetic correlation
650 $aLongevity
653 $aAge at first calving
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aABREU, L. R. A.
700 1 $aMOTA, L. F. M.
700 1 $aPIRES, A. V.
700 1 $aVILLELA, S. D. J.
700 1 $aMARTINS, P. G. M. A.
773 $tAnimal Production Science$gv. 58, n. 10, p. 1788-1793, 2017.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Cutter |
Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
12/11/2001 |
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Data da última atualização: |
21/10/2015 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VIANA, M. C. M.; QUEIROZ, C. G. de S.; SOUZA, I. R. P. de; DURAES, F. O. M. |
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Afiliação: |
ISABEL REGINA PRAZERES DE SOUZA, CNPMS; FREDERICO OZANAN MACHADO DURAES, SPM GGE. |
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Título: |
Atividade de enzimas antioxidantes em linhagem de milho (Zea mays L.) submetidas a déficit hídrico. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 8., 2001, Ilheus, BA. Anais... Ilheus, SBFV, 2001. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Deficit hidrico; Enzyme; Fluorescimento; Maize; Water deficit. |
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Thesagro: |
Enzima; Milho; Zea Mays. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/35699/1/Atividade-enzimas.pdf
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Marc: |
LEADER 00748nam a2200241 a 4500
001 1485140
005 2015-10-21
008 2001 bl uuuu u00u1 u #d
100 1 $aVIANA, M. C. M.
245 $aAtividade de enzimas antioxidantes em linhagem de milho (Zea mays L.) submetidas a déficit hídrico.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 8., 2001, Ilheus, BA. Anais... Ilheus, SBFV$c2001
300 $c1 CD-ROM.
650 $aEnzima
650 $aMilho
650 $aZea Mays
653 $aDeficit hidrico
653 $aEnzyme
653 $aFluorescimento
653 $aMaize
653 $aWater deficit
700 1 $aQUEIROZ, C. G. de S.
700 1 $aSOUZA, I. R. P. de
700 1 $aDURAES, F. O. M.
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Embrapa Milho e Sorgo (CNPMS) |
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