Estimation of genetic parameters for weaning and yearling weights in a composite population used to form the Purunã breed
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
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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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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1750318154113875968 |