Random regression models for the evaluation of the growth of goats of the Anglonubian breed
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000300961 |
Resumo: | ABSTRACT A total of 6593 weight records collected from 796 male and female Anglo-Nubian goats aged up to 130 days, offspring from 29 sires and 225 dams, were used to compare models and estimate genetic parameters throughout the growth curve by applying random regression models. Direct and maternal additive genetic effects and direct and maternal permanent environmental effects were included as random in the models. The contemporary groups were included as fixed effects and goat age at kidding was included as a covariable (linear and quadratic). The choice of the best model was based on the AIC, BIC and AICc criteria. Variance estimates of the four random effects increased as the animals aged. Direct heritability (h2) rose from 0.13 to 0.40 with age, whereas maternal heritability showed a low value. Genetic correlations of weight between closer ages were high. The most suitable random regression model to compare the fitting of random effects was that which employed the Legendre polynomials of quadratic order with homogeneous variance (3333-1). |
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Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
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Random regression models for the evaluation of the growth of goats of the Anglonubian breedcaprahircuscorrelationsheritabilitygenetic parametersABSTRACT A total of 6593 weight records collected from 796 male and female Anglo-Nubian goats aged up to 130 days, offspring from 29 sires and 225 dams, were used to compare models and estimate genetic parameters throughout the growth curve by applying random regression models. Direct and maternal additive genetic effects and direct and maternal permanent environmental effects were included as random in the models. The contemporary groups were included as fixed effects and goat age at kidding was included as a covariable (linear and quadratic). The choice of the best model was based on the AIC, BIC and AICc criteria. Variance estimates of the four random effects increased as the animals aged. Direct heritability (h2) rose from 0.13 to 0.40 with age, whereas maternal heritability showed a low value. Genetic correlations of weight between closer ages were high. The most suitable random regression model to compare the fitting of random effects was that which employed the Legendre polynomials of quadratic order with homogeneous variance (3333-1).Universidade Federal de Minas Gerais, Escola de Veterinária2020-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000300961Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.72 n.3 2020reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)instname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG10.1590/1678-4162-11501info:eu-repo/semantics/openAccessCastro,G.C.Campelo,J.E.G.Sarmento,J.L.R.Carvalho,M.D.F.Cavalcante,D.H.Fiqueiredo Filho,L.A.S.eng2020-07-03T00:00:00Zoai:scielo:S0102-09352020000300961Revistahttps://www.scielo.br/j/abmvz/PUBhttps://old.scielo.br/oai/scielo-oai.phpjournal@vet.ufmg.br||abmvz.artigo@abmvz.org.br1678-41620102-0935opendoar:2020-07-03T00:00Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.none.fl_str_mv |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
title |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
spellingShingle |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed Castro,G.C. caprahircus correlations heritability genetic parameters |
title_short |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
title_full |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
title_fullStr |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
title_full_unstemmed |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
title_sort |
Random regression models for the evaluation of the growth of goats of the Anglonubian breed |
author |
Castro,G.C. |
author_facet |
Castro,G.C. Campelo,J.E.G. Sarmento,J.L.R. Carvalho,M.D.F. Cavalcante,D.H. Fiqueiredo Filho,L.A.S. |
author_role |
author |
author2 |
Campelo,J.E.G. Sarmento,J.L.R. Carvalho,M.D.F. Cavalcante,D.H. Fiqueiredo Filho,L.A.S. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Castro,G.C. Campelo,J.E.G. Sarmento,J.L.R. Carvalho,M.D.F. Cavalcante,D.H. Fiqueiredo Filho,L.A.S. |
dc.subject.por.fl_str_mv |
caprahircus correlations heritability genetic parameters |
topic |
caprahircus correlations heritability genetic parameters |
description |
ABSTRACT A total of 6593 weight records collected from 796 male and female Anglo-Nubian goats aged up to 130 days, offspring from 29 sires and 225 dams, were used to compare models and estimate genetic parameters throughout the growth curve by applying random regression models. Direct and maternal additive genetic effects and direct and maternal permanent environmental effects were included as random in the models. The contemporary groups were included as fixed effects and goat age at kidding was included as a covariable (linear and quadratic). The choice of the best model was based on the AIC, BIC and AICc criteria. Variance estimates of the four random effects increased as the animals aged. Direct heritability (h2) rose from 0.13 to 0.40 with age, whereas maternal heritability showed a low value. Genetic correlations of weight between closer ages were high. The most suitable random regression model to compare the fitting of random effects was that which employed the Legendre polynomials of quadratic order with homogeneous variance (3333-1). |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-01 |
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=S0102-09352020000300961 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000300961 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4162-11501 |
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 |
Universidade Federal de Minas Gerais, Escola de Veterinária |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais, Escola de Veterinária |
dc.source.none.fl_str_mv |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.72 n.3 2020 reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online) instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
instname_str |
Universidade Federal de Minas Gerais (UFMG) |
instacron_str |
UFMG |
institution |
UFMG |
reponame_str |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
collection |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) |
repository.name.fl_str_mv |
Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG) |
repository.mail.fl_str_mv |
journal@vet.ufmg.br||abmvz.artigo@abmvz.org.br |
_version_ |
1750220894222942208 |