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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
13/12/2018 |
Data da última atualização: |
24/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Genetic association between stayability, and productive and reproductive traits in Holstein cows. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Animal Production Science, v. 58, n. 10, p. 1788-1793, 2017. |
DOI: |
10.1071/AN16563 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Age at first calving. |
Thesaurus Nal: |
Dairy cattle; Genetic correlation; Longevity. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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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Embrapa Gado de Leite (CNPGL) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
13/04/2004 |
Data da última atualização: |
07/07/2022 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
OLIVEIRA, M. G.; MONTEIRO, S. P.; SILVA, I. V. T.; LIMA, P. C. F. |
Afiliação: |
PAULO CESAR FERNANDES LIMA, CPATSA. |
Título: |
Influência do substrato na germinação de sementes de neem (Azadirachta indica A. Juss. - Meliaceae). |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
In: REUNIÃO NORDESTINA DE BOTÂNICA, 27., 2004, Petrolina. Anais... Petrolina: SBB; Embrapa Semi-Árido; UNEB, 2004. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Conteúdo: |
O presente trabalho analisa a influência do substrato na germinação de sementes. |
Palavras-Chave: |
Neem; Substrato. |
Thesagro: |
Germinação; Semente. |
Thesaurus NAL: |
Germination; Seeds. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/28524/1/OPB413.pdf
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Marc: |
LEADER 00778nam a2200229 a 4500 001 1153042 005 2022-07-07 008 2004 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, M. G. 245 $aInfluência do substrato na germinação de sementes de neem (Azadirachta indica A. Juss. - Meliaceae). 260 $aIn: REUNIÃO NORDESTINA DE BOTÂNICA, 27., 2004, Petrolina. Anais... Petrolina: SBB; Embrapa Semi-Árido; UNEB$c2004 300 $c1 CD-ROM. 520 $aO presente trabalho analisa a influência do substrato na germinação de sementes. 650 $aGermination 650 $aSeeds 650 $aGerminação 650 $aSemente 653 $aNeem 653 $aSubstrato 700 1 $aMONTEIRO, S. P. 700 1 $aSILVA, I. V. T. 700 1 $aLIMA, P. C. F.
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