Genetic association between longevity and linear type traits of Holstein cows

Detalhes bibliográficos
Autor(a) principal: Kern,Elisandra Lurdes
Data de Publicação: 2015
Outros Autores: Cobuci,Jaime Araujo, Costa,Cláudio Napolis, McManus,Concepta Margaret, Braccini Neto,José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300203
Resumo: 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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spelling Genetic association between longevity and linear type traits of Holstein cowsgenetic correlationmammary systemproductive liferear teat placementLongevity 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.Escola Superior de Agricultura "Luiz de Queiroz"2015-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300203Scientia Agricola v.72 n.3 2015reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0103-9016-2014-0007info:eu-repo/semantics/openAccessKern,Elisandra LurdesCobuci,Jaime AraujoCosta,Cláudio NapolisMcManus,Concepta MargaretBraccini Neto,Joséeng2015-04-15T00:00:00Zoai:scielo:S0103-90162015000300203Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2015-04-15T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Genetic association between longevity and linear type traits of Holstein cows
title Genetic association between longevity and linear type traits of Holstein cows
spellingShingle Genetic association between longevity and linear type traits of Holstein cows
Kern,Elisandra Lurdes
genetic correlation
mammary system
productive life
rear teat placement
title_short Genetic association between longevity and linear type traits of Holstein cows
title_full Genetic association between longevity and linear type traits of Holstein cows
title_fullStr Genetic association between longevity and linear type traits of Holstein cows
title_full_unstemmed Genetic association between longevity and linear type traits of Holstein cows
title_sort Genetic association between longevity and linear type traits of Holstein cows
author Kern,Elisandra Lurdes
author_facet Kern,Elisandra Lurdes
Cobuci,Jaime Araujo
Costa,Cláudio Napolis
McManus,Concepta Margaret
Braccini Neto,José
author_role author
author2 Cobuci,Jaime Araujo
Costa,Cláudio Napolis
McManus,Concepta Margaret
Braccini Neto,José
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Kern,Elisandra Lurdes
Cobuci,Jaime Araujo
Costa,Cláudio Napolis
McManus,Concepta Margaret
Braccini Neto,José
dc.subject.por.fl_str_mv genetic correlation
mammary system
productive life
rear teat placement
topic genetic correlation
mammary system
productive life
rear teat placement
description 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.
publishDate 2015
dc.date.none.fl_str_mv 2015-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300203
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000300203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-9016-2014-0007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.72 n.3 2015
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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