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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/01/2004 |
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Data da última atualização: |
08/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NOBRE, P. R. C.; LOPES, P. S.; TORRES, R. A.; SILVA, L. O. C. da; REGAZZI, A. J.; TORRES JÚNIOR, R. A. A.; MISZTAL, I. |
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Afiliação: |
Fundapam - Geneplus; Universidade Federal de Viçosa - UFV; Universidade Federal de Viçosa - UFV; LUIZ OTAVIO CAMPOS DA SILVA, CNPGC; Universidade Federal de Viçosa - UFV; CNPGC; University of Georgia - USA. |
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Título: |
Analyses of growth curves of Nellore cattle by Bayesian method via Gibbs sampling. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 55, n. 4, p. 480-490, ago. 2003. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Análises de curvas de crescimento de gado Nelore pela metodologia Bayesiana via Gibbs sampling. |
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Conteúdo: |
Growth curves of Nellore cattle were analyzed using body weights measured at ages ranging from 1 day (birth weight) to 733 days. Traits considered were birth weight, 10 to 110 days weight, 102 to 202 days weight, 193 to 293 days weight, 283 to 383 days weight, 376 to 476 days weight, 551 to 651 days weight, and 633 to 733 days weight. Two data samples were created: one with 79,849 records from herds that had missing traits and another with 74,601 from herds with no missing traits. Records preadjusted to a fixed age were analyzed by a multiple trait model (MTM), which included the effects of contemporary group, age of dam class, additive direct, additive maternal, and maternal permanent environment. Analyses were carried out by a Bayesian method for all nine traits. The random regression model (RRM) included the effects of age of animal, contemporary group, age of dam class, additive direct, permanent environment, additive maternal, and maternal permanent environment. Legendre cubic polynomials were used to describe random effects. MTM estimated covariance components and genetic parameters for birth weight and sequential weights and RRM for all ages. Due to the fact that covariance components based on RRM were inflated for herds with missing traits, MTM should be used and converted to covariance functions. |
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Palavras-Chave: |
Bovino de corte; Growth; Nelore. |
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Thesagro: |
Curva de Crescimento; Melhoramento Genético Animal. |
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Thesaurus Nal: |
animal breeding; beef cattle; Nellore. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02317naa a2200301 a 4500
001 1325425
005 2020-04-08
008 2003 bl uuuu u00u1 u #d
100 1 $aNOBRE, P. R. C.
245 $aAnalyses of growth curves of Nellore cattle by Bayesian method via Gibbs sampling.
260 $c2003
500 $aTítulo em português: Análises de curvas de crescimento de gado Nelore pela metodologia Bayesiana via Gibbs sampling.
520 $aGrowth curves of Nellore cattle were analyzed using body weights measured at ages ranging from 1 day (birth weight) to 733 days. Traits considered were birth weight, 10 to 110 days weight, 102 to 202 days weight, 193 to 293 days weight, 283 to 383 days weight, 376 to 476 days weight, 551 to 651 days weight, and 633 to 733 days weight. Two data samples were created: one with 79,849 records from herds that had missing traits and another with 74,601 from herds with no missing traits. Records preadjusted to a fixed age were analyzed by a multiple trait model (MTM), which included the effects of contemporary group, age of dam class, additive direct, additive maternal, and maternal permanent environment. Analyses were carried out by a Bayesian method for all nine traits. The random regression model (RRM) included the effects of age of animal, contemporary group, age of dam class, additive direct, permanent environment, additive maternal, and maternal permanent environment. Legendre cubic polynomials were used to describe random effects. MTM estimated covariance components and genetic parameters for birth weight and sequential weights and RRM for all ages. Due to the fact that covariance components based on RRM were inflated for herds with missing traits, MTM should be used and converted to covariance functions.
650 $aanimal breeding
650 $abeef cattle
650 $aNellore
650 $aCurva de Crescimento
650 $aMelhoramento Genético Animal
653 $aBovino de corte
653 $aGrowth
653 $aNelore
700 1 $aLOPES, P. S.
700 1 $aTORRES, R. A.
700 1 $aSILVA, L. O. C. da
700 1 $aREGAZZI, A. J.
700 1 $aTORRES JÚNIOR, R. A. A.
700 1 $aMISZTAL, I.
773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte$gv. 55, n. 4, p. 480-490, ago. 2003.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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