Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle

Detalhes bibliográficos
Autor(a) principal: Silva,Thiago Bruno Ribeiro da
Data de Publicação: 2013
Outros Autores: Araújo,Cláudio Vieira de, Bittencourt,Thereza Cristina Borio dos Santos Calmon de, Araújo,Simone Inoe, Lôbo,Raysildo Barbosa, Bezerra,Luiz Antônio Framartino, Silva,Delvan Alves da, Silva,Alessandra Alves da
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=S1516-35982013000400004
Resumo: A total of 204,912 records of birth weights up to 550 days of age, of 24,890 Nellore cattle, offspring of 375 sires and 16,917 dams from five herds in the state of Mato Grosso, Brazil, were used in order to describe the variability of the weight development by random regression models. The model evaluated as the most suitable used the covariance function of fourth order to describe the variability of the effects of additive genetic, animal permanent environmental and maternal effects of third order to describe the maternal genetic effect, with four classes of residual variance. Heritability estimates ranged from 0.18 to 0.46 from the beginning of trajectory to 210 days of age, from 0.45 to 0.48 post-weaning to 365 days of age and from 0.47 to 0.57 at later ages. The values of additive genetic correlations for different ages showed higher estimates between the closest ages, while birth weight was not very related to the weights at older ages. The body weight performance of the animals has additive genetic variation to respond to selection.
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spelling Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattlebeef cattlelive weightselectionA total of 204,912 records of birth weights up to 550 days of age, of 24,890 Nellore cattle, offspring of 375 sires and 16,917 dams from five herds in the state of Mato Grosso, Brazil, were used in order to describe the variability of the weight development by random regression models. The model evaluated as the most suitable used the covariance function of fourth order to describe the variability of the effects of additive genetic, animal permanent environmental and maternal effects of third order to describe the maternal genetic effect, with four classes of residual variance. Heritability estimates ranged from 0.18 to 0.46 from the beginning of trajectory to 210 days of age, from 0.45 to 0.48 post-weaning to 365 days of age and from 0.47 to 0.57 at later ages. The values of additive genetic correlations for different ages showed higher estimates between the closest ages, while birth weight was not very related to the weights at older ages. The body weight performance of the animals has additive genetic variation to respond to selection.Sociedade Brasileira de Zootecnia2013-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400004Revista Brasileira de Zootecnia v.42 n.4 2013reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982013000400004info:eu-repo/semantics/openAccessSilva,Thiago Bruno Ribeiro daAraújo,Cláudio Vieira deBittencourt,Thereza Cristina Borio dos Santos Calmon deAraújo,Simone InoeLôbo,Raysildo BarbosaBezerra,Luiz Antônio FramartinoSilva,Delvan Alves daSilva,Alessandra Alves daeng2013-04-05T00:00:00Zoai:scielo:S1516-35982013000400004Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2013-04-05T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
title Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
spellingShingle Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
Silva,Thiago Bruno Ribeiro da
beef cattle
live weight
selection
title_short Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
title_full Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
title_fullStr Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
title_full_unstemmed Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
title_sort Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
author Silva,Thiago Bruno Ribeiro da
author_facet Silva,Thiago Bruno Ribeiro da
Araújo,Cláudio Vieira de
Bittencourt,Thereza Cristina Borio dos Santos Calmon de
Araújo,Simone Inoe
Lôbo,Raysildo Barbosa
Bezerra,Luiz Antônio Framartino
Silva,Delvan Alves da
Silva,Alessandra Alves da
author_role author
author2 Araújo,Cláudio Vieira de
Bittencourt,Thereza Cristina Borio dos Santos Calmon de
Araújo,Simone Inoe
Lôbo,Raysildo Barbosa
Bezerra,Luiz Antônio Framartino
Silva,Delvan Alves da
Silva,Alessandra Alves da
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva,Thiago Bruno Ribeiro da
Araújo,Cláudio Vieira de
Bittencourt,Thereza Cristina Borio dos Santos Calmon de
Araújo,Simone Inoe
Lôbo,Raysildo Barbosa
Bezerra,Luiz Antônio Framartino
Silva,Delvan Alves da
Silva,Alessandra Alves da
dc.subject.por.fl_str_mv beef cattle
live weight
selection
topic beef cattle
live weight
selection
description A total of 204,912 records of birth weights up to 550 days of age, of 24,890 Nellore cattle, offspring of 375 sires and 16,917 dams from five herds in the state of Mato Grosso, Brazil, were used in order to describe the variability of the weight development by random regression models. The model evaluated as the most suitable used the covariance function of fourth order to describe the variability of the effects of additive genetic, animal permanent environmental and maternal effects of third order to describe the maternal genetic effect, with four classes of residual variance. Heritability estimates ranged from 0.18 to 0.46 from the beginning of trajectory to 210 days of age, from 0.45 to 0.48 post-weaning to 365 days of age and from 0.47 to 0.57 at later ages. The values of additive genetic correlations for different ages showed higher estimates between the closest ages, while birth weight was not very related to the weights at older ages. The body weight performance of the animals has additive genetic variation to respond to selection.
publishDate 2013
dc.date.none.fl_str_mv 2013-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-35982013000400004
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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.42 n.4 2013
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
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repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
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