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| Registros recuperados : 8 | |
| 4. |  | CAMPOS, R. V.; COBUCI, J. A.; KERN, E. L.; COSTA, C. N.; McMANUS, C. M. Genetic parameters for linear type traits and milk, fat, and protein production in holstein cows in Brazil. Asian-Australasian Journal of Animal Sciences, v. 28, n. 4, p. 476-484, 2015.| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | KERN, E. L.; COBUCI, J. A.; COSTA, C. N.; MCMANUS, C. M.; CAMPOS, G. S.; ALMEIDA, T. P.; CAMPOS, R. V. Genetic association between herd survival and linear type traits in Holstein cows under tropical conditions. Italian Journal of Animal Science, v. 13, p. 665-672, 2014.| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 8 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
05/02/2013 |
|
Data da última atualização: |
23/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
CAMPOS, R. V.; COBUCI, J. A.; COSTA, C. N.; BRACCINI NETO, J. |
|
Afiliação: |
RAFAEL VIEGAS CAMPOS, UFRS; JAIME ARAUJO COBUCI, UFRS; CLAUDIO NAPOLIS COSTA, CNPGL; JOSÉ BRACCINI NETO, UFRS. |
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Título: |
Genetic parameters for type traits in Holstein cows in Brazil. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 41, n. 10, p. 2150-2161, 2012. |
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DOI: |
https://doi.org/10.1590/S1516-35982012001000003 |
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Idioma: |
Inglês |
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Conteúdo: |
Data from 26,558 Holstein cows in 802 herds were used to estimate genetic, residual and phenotypic parameters for 22 type traits. The model included the fixed effects of herd-year, period of classification, classifier, stage of lactation and age of cows at calving (covariate) and random genetic and residual effects. Heritability for type traits ranged from 0.10 to 0.39. The genetic variability in these traits suggested the possibility for moderate genetic gains through selection. The phenotypic correlations were moderated, mainly in the section conformation. Genetic correlations between type traits ranged from -0.44 to 0.85. High genetic correlations indicated that breeding programs could be successful without including all type traits. The selection for the final score at the expense of other traits must be performed with restraint, because in the long term, this may promote undesirable changes in some type traits. |
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Palavras-Chave: |
Correlação genetica; Covariancia de componentes; Gado de leite; REMLF90. |
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Thesagro: |
Hereditariedade; Seleção. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/948339/1/Genetic-parameters-for-type-traits-in-Holstein-cows-in-Brazil.pdf
|
|
Marc: |
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024 7 $ahttps://doi.org/10.1590/S1516-35982012001000003$2DOI
100 1 $aCAMPOS, R. V.
245 $aGenetic parameters for type traits in Holstein cows in Brazil.$h[electronic resource]
260 $c2012
520 $aData from 26,558 Holstein cows in 802 herds were used to estimate genetic, residual and phenotypic parameters for 22 type traits. The model included the fixed effects of herd-year, period of classification, classifier, stage of lactation and age of cows at calving (covariate) and random genetic and residual effects. Heritability for type traits ranged from 0.10 to 0.39. The genetic variability in these traits suggested the possibility for moderate genetic gains through selection. The phenotypic correlations were moderated, mainly in the section conformation. Genetic correlations between type traits ranged from -0.44 to 0.85. High genetic correlations indicated that breeding programs could be successful without including all type traits. The selection for the final score at the expense of other traits must be performed with restraint, because in the long term, this may promote undesirable changes in some type traits.
650 $aHereditariedade
650 $aSeleção
653 $aCorrelação genetica
653 $aCovariancia de componentes
653 $aGado de leite
653 $aREMLF90
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aBRACCINI NETO, J.
773 $tRevista Brasileira de Zootecnia$gv. 41, n. 10, p. 2150-2161, 2012.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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