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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/01/2016 |
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Data da última atualização: |
03/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KERN, E. L.; COBUCI, J. A.; COSTA, C. N.; MCMANUS, C. M.; BRACCINI NETO, J. |
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Afiliação: |
Elisandra Lurdes Kern; Jaime Araujo Cobuci; CLAUDIO NAPOLIS COSTA, CNPGL; Concepta Margaret McManus; José Braccini Neto. |
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Título: |
Genetic association between longevity and linear type traits of Holstein cows. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Scientia Agricola, v. 72, n. 3, p.203-209, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Longevity is a desirable trait in the dairy industry because of its relationship to profitability. The aim of this study was to estimate genetic parameters for longevity measurements related to productive life, or life in the herd, and linear type traits of Brazilian Holstein cows born between the years 1990 and 2008. The (co) variance components were estimated by the restricted maximum likelihood method. The heritability for measurements of longevity and linear type traits ranged from 0.05 to 0.07 and 0.08 to 0.39, respectively. The genetic correlations between measurements of longevity and linear type traits ranged from -0.39 to 0.31. Direct selection for longevity does not necessarily lead to long-lived cows, due to low heritability. Indirect genetic selection for udder depth, bone quality, udder height, rear teat placement and conformation traits showed the highest genetic correlations with measurements of time between birth and last milk record and time from first calving to last milk record. |
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Palavras-Chave: |
Mammary system; Productive life; Rear teat placement. |
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Thesaurus Nal: |
genetic correlation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/136788/1/Cnpgl-2015-SciAgric-Genetic.pdf
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Marc: |
LEADER 01642naa a2200217 a 4500
001 2033243
005 2024-02-03
008 2015 bl uuuu u00u1 u #d
100 1 $aKERN, E. L.
245 $aGenetic association between longevity and linear type traits of Holstein cows.$h[electronic resource]
260 $c2015
520 $aLongevity is a desirable trait in the dairy industry because of its relationship to profitability. The aim of this study was to estimate genetic parameters for longevity measurements related to productive life, or life in the herd, and linear type traits of Brazilian Holstein cows born between the years 1990 and 2008. The (co) variance components were estimated by the restricted maximum likelihood method. The heritability for measurements of longevity and linear type traits ranged from 0.05 to 0.07 and 0.08 to 0.39, respectively. The genetic correlations between measurements of longevity and linear type traits ranged from -0.39 to 0.31. Direct selection for longevity does not necessarily lead to long-lived cows, due to low heritability. Indirect genetic selection for udder depth, bone quality, udder height, rear teat placement and conformation traits showed the highest genetic correlations with measurements of time between birth and last milk record and time from first calving to last milk record.
650 $agenetic correlation
653 $aMammary system
653 $aProductive life
653 $aRear teat placement
700 1 $aCOBUCI, J. A.
700 1 $aCOSTA, C. N.
700 1 $aMCMANUS, C. M.
700 1 $aBRACCINI NETO, J.
773 $tScientia Agricola$gv. 72, n. 3, p.203-209, 2015.
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Embrapa Gado de Leite (CNPGL) |
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