Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.

Detalhes bibliográficos
Autor(a) principal: KERN, E. L.
Data de Publicação: 2014
Outros Autores: COBUCI, J. A., COSTA, C. N., BRACCINI NETO, J., CAMPOS, G. S., MCMANUS, C. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010574
Resumo: The aim in this study was to estimate variance components and heritability of different longevity measures related to productive life and survival at a specified age, using linear and threshold models, to specify the more appropriate measure to express longevity in Brazilian Holstein cows. Production and reproduction records of Holstein cows were collected from 1991 to 2010, for cows born between 1987 and 2006. Variance components were obtained by restricted maximum likelihood (REML) for measures of productive life and a Bayesian analysis for survival measures. The heritability estimates for longevity measures ranged from 0.06 to 0.09, using the linear model and from 0.05 to 0.18 for traits using the threshold model. This suggests an inexpressive genetic gain using selection for these traits, whereas improvements in environmental factors which affect these animals may lead to greater phenotypic gains. Survival up to 48 months from first calving was the measureing point defined as the most appropriate to be included in future official genetic evaluations of Holstein cattle in Brazil.
id EMBR_2568d6aa451c327a96c3795ff26ee3a7
oai_identifier_str oai:www.alice.cnptia.embrapa.br:doc/1010574
network_acronym_str EMBR
network_name_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository_id_str 2154
spelling Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.Bayesian methodREML methodSurvival in herdProductive lifeThe aim in this study was to estimate variance components and heritability of different longevity measures related to productive life and survival at a specified age, using linear and threshold models, to specify the more appropriate measure to express longevity in Brazilian Holstein cows. Production and reproduction records of Holstein cows were collected from 1991 to 2010, for cows born between 1987 and 2006. Variance components were obtained by restricted maximum likelihood (REML) for measures of productive life and a Bayesian analysis for survival measures. The heritability estimates for longevity measures ranged from 0.06 to 0.09, using the linear model and from 0.05 to 0.18 for traits using the threshold model. This suggests an inexpressive genetic gain using selection for these traits, whereas improvements in environmental factors which affect these animals may lead to greater phenotypic gains. Survival up to 48 months from first calving was the measureing point defined as the most appropriate to be included in future official genetic evaluations of Holstein cattle in Brazil.ELISANDRA L. KERN, UFRGSJAIME A. COBUCI, UFRGSCLAUDIO NAPOLIS COSTA, CNPGLJOSÉ BRACCINI NETO, UFRGSGABRIEL S. CAMPOS, UFPELCONCEPTA M. MCMANUS, UNBInstituto Nacional de Ciência e Tecnologia - Informação Genético-Sanitária da Pecuária Brasileira.KERN, E. L.COBUCI, J. A.COSTA, C. N.BRACCINI NETO, J.CAMPOS, G. S.MCMANUS, C. M.2024-02-05T11:32:21Z2024-02-05T11:32:21Z2015-03-042014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleArchiv fur Tierzucht, v. 57, n. 33, p. 1-12, 2014.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010574enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2024-02-05T11:32:21Zoai:www.alice.cnptia.embrapa.br:doc/1010574Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542024-02-05T11:32:21falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542024-02-05T11:32:21Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
title Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
spellingShingle Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
KERN, E. L.
Bayesian method
REML method
Survival in herd
Productive life
title_short Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
title_full Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
title_fullStr Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
title_full_unstemmed Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
title_sort Genetic parameters for longevity measures in Brazilian Holstein cattle using linear and threshold models.
author KERN, E. L.
author_facet KERN, E. L.
COBUCI, J. A.
COSTA, C. N.
BRACCINI NETO, J.
CAMPOS, G. S.
MCMANUS, C. M.
author_role author
author2 COBUCI, J. A.
COSTA, C. N.
BRACCINI NETO, J.
CAMPOS, G. S.
MCMANUS, C. M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv ELISANDRA L. KERN, UFRGS
JAIME A. COBUCI, UFRGS
CLAUDIO NAPOLIS COSTA, CNPGL
JOSÉ BRACCINI NETO, UFRGS
GABRIEL S. CAMPOS, UFPEL
CONCEPTA M. MCMANUS, UNB
Instituto Nacional de Ciência e Tecnologia - Informação Genético-Sanitária da Pecuária Brasileira.
dc.contributor.author.fl_str_mv KERN, E. L.
COBUCI, J. A.
COSTA, C. N.
BRACCINI NETO, J.
CAMPOS, G. S.
MCMANUS, C. M.
dc.subject.por.fl_str_mv Bayesian method
REML method
Survival in herd
Productive life
topic Bayesian method
REML method
Survival in herd
Productive life
description The aim in this study was to estimate variance components and heritability of different longevity measures related to productive life and survival at a specified age, using linear and threshold models, to specify the more appropriate measure to express longevity in Brazilian Holstein cows. Production and reproduction records of Holstein cows were collected from 1991 to 2010, for cows born between 1987 and 2006. Variance components were obtained by restricted maximum likelihood (REML) for measures of productive life and a Bayesian analysis for survival measures. The heritability estimates for longevity measures ranged from 0.06 to 0.09, using the linear model and from 0.05 to 0.18 for traits using the threshold model. This suggests an inexpressive genetic gain using selection for these traits, whereas improvements in environmental factors which affect these animals may lead to greater phenotypic gains. Survival up to 48 months from first calving was the measureing point defined as the most appropriate to be included in future official genetic evaluations of Holstein cattle in Brazil.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015-03-04
2024-02-05T11:32:21Z
2024-02-05T11:32:21Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Archiv fur Tierzucht, v. 57, n. 33, p. 1-12, 2014.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010574
identifier_str_mv Archiv fur Tierzucht, v. 57, n. 33, p. 1-12, 2014.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1010574
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
_version_ 1794503557418844160