Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed

Detalhes bibliográficos
Autor(a) principal: Otto,Pamela Itajara
Data de Publicação: 2021
Outros Autores: Santos,Alexandre Leseur dos, Perotto,Daniel, Oliveira,Sheila Nogueira de, Granzotto,Fernanda, Gobo,Diego Ortunio Rosa, Souza,Felipe Eduardo Zanão de, Thomazini,Guilherme
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100404
Resumo: ABSTRACT We aimed to evaluate the effects of sex and the linear and quadratic components of age of dam at calving, as well as apply a mixed model including maternal effect for the genetic evaluation of weaning (WW) and yearling (YW) weights. The phenotypic database was composed by Charolais, Caracu, Aberdeen Angus, and Canchim purebred and crossbred animals. Single-trait analyses were performed using models that included the maternal effect for WW and YW traits, and a model ignoring this effect on YW (YWNM). The Deviance Information Criterion (DIC), model posterior probabilities (MPP), accuracy of breeding values (ACC), and Spearman’s rank correlation were applied to compare the models including and ignoring the maternal effect on YW. Sex and age of dam at calving had significant effects on WW and YW. The direct heritability estimates were 0.21±0.03 and 0.05±0.02, and the maternal heritabilities were 0.11±0.02 and 0.02±0.01 for WW and YW, respectively. The heritabilities estimated for YW may have been influenced by the several genetic groups in the population and by used conventional animal model, which may not have been the better fit model to evaluate YW in this population. The DIC, MPP, and ACC values indicated that YW outperformed the YWNM model, but the rank correlation and percentages of individuals selected in common suggested that the best animals would be selected independently of the model chosen.
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spelling Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breedbody weightcrossbred cattlegrowth traitsmaternal effectABSTRACT We aimed to evaluate the effects of sex and the linear and quadratic components of age of dam at calving, as well as apply a mixed model including maternal effect for the genetic evaluation of weaning (WW) and yearling (YW) weights. The phenotypic database was composed by Charolais, Caracu, Aberdeen Angus, and Canchim purebred and crossbred animals. Single-trait analyses were performed using models that included the maternal effect for WW and YW traits, and a model ignoring this effect on YW (YWNM). The Deviance Information Criterion (DIC), model posterior probabilities (MPP), accuracy of breeding values (ACC), and Spearman’s rank correlation were applied to compare the models including and ignoring the maternal effect on YW. Sex and age of dam at calving had significant effects on WW and YW. The direct heritability estimates were 0.21±0.03 and 0.05±0.02, and the maternal heritabilities were 0.11±0.02 and 0.02±0.01 for WW and YW, respectively. The heritabilities estimated for YW may have been influenced by the several genetic groups in the population and by used conventional animal model, which may not have been the better fit model to evaluate YW in this population. The DIC, MPP, and ACC values indicated that YW outperformed the YWNM model, but the rank correlation and percentages of individuals selected in common suggested that the best animals would be selected independently of the model chosen.Sociedade Brasileira de Zootecnia2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100404Revista Brasileira de Zootecnia v.50 2021reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.37496/rbz5020180224info:eu-repo/semantics/openAccessOtto,Pamela ItajaraSantos,Alexandre Leseur dosPerotto,DanielOliveira,Sheila Nogueira deGranzotto,FernandaGobo,Diego Ortunio RosaSouza,Felipe Eduardo Zanão deThomazini,Guilhermeeng2021-06-25T00:00:00Zoai:scielo:S1516-35982021000100404Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2021-06-25T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
title Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
spellingShingle Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
Otto,Pamela Itajara
body weight
crossbred cattle
growth traits
maternal effect
title_short Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
title_full Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
title_fullStr Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
title_full_unstemmed Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
title_sort Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
author Otto,Pamela Itajara
author_facet Otto,Pamela Itajara
Santos,Alexandre Leseur dos
Perotto,Daniel
Oliveira,Sheila Nogueira de
Granzotto,Fernanda
Gobo,Diego Ortunio Rosa
Souza,Felipe Eduardo Zanão de
Thomazini,Guilherme
author_role author
author2 Santos,Alexandre Leseur dos
Perotto,Daniel
Oliveira,Sheila Nogueira de
Granzotto,Fernanda
Gobo,Diego Ortunio Rosa
Souza,Felipe Eduardo Zanão de
Thomazini,Guilherme
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Otto,Pamela Itajara
Santos,Alexandre Leseur dos
Perotto,Daniel
Oliveira,Sheila Nogueira de
Granzotto,Fernanda
Gobo,Diego Ortunio Rosa
Souza,Felipe Eduardo Zanão de
Thomazini,Guilherme
dc.subject.por.fl_str_mv body weight
crossbred cattle
growth traits
maternal effect
topic body weight
crossbred cattle
growth traits
maternal effect
description ABSTRACT We aimed to evaluate the effects of sex and the linear and quadratic components of age of dam at calving, as well as apply a mixed model including maternal effect for the genetic evaluation of weaning (WW) and yearling (YW) weights. The phenotypic database was composed by Charolais, Caracu, Aberdeen Angus, and Canchim purebred and crossbred animals. Single-trait analyses were performed using models that included the maternal effect for WW and YW traits, and a model ignoring this effect on YW (YWNM). The Deviance Information Criterion (DIC), model posterior probabilities (MPP), accuracy of breeding values (ACC), and Spearman’s rank correlation were applied to compare the models including and ignoring the maternal effect on YW. Sex and age of dam at calving had significant effects on WW and YW. The direct heritability estimates were 0.21±0.03 and 0.05±0.02, and the maternal heritabilities were 0.11±0.02 and 0.02±0.01 for WW and YW, respectively. The heritabilities estimated for YW may have been influenced by the several genetic groups in the population and by used conventional animal model, which may not have been the better fit model to evaluate YW in this population. The DIC, MPP, and ACC values indicated that YW outperformed the YWNM model, but the rank correlation and percentages of individuals selected in common suggested that the best animals would be selected independently of the model chosen.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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=S1516-35982021000100404
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100404
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.37496/rbz5020180224
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 Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.50 2021
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ
instname_str Sociedade Brasileira de Zootecnia (SBZ)
instacron_str SBZ
institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
repository.mail.fl_str_mv ||bz@sbz.org.br|| secretariarbz@sbz.org.br
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