Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/5640 |
Resumo: | The aim of this work was to estimate the heritability and the genetic correlations between visual scores and reproductive traits of Nelore cattle. The traits evaluated were: finishing, muscling, and conformation scores at weaning (PD, MD, and CD, respectively) and yearling (PS, MS and CS, respectively); age at the first calving (IPP) and scrotal circumference (PE). The records of 66,244 animals born between 1990 and 2006 were used. The genetic parameters were estimated using bi-trait animal analyses with Bayesian inference. A linear model for IPP and PE and a nonlinear (threshold) model for visual scores were used. The heritability estimates were: CD, 0.19±0.02; PD, 0.23±0.02; MD, 0.20±0.02; CS, 0.26±0.01; PS, 0.33±0.02; MS, 0.32±0.02; IPP, 0.16±0.03; and PE, 0.36±0.02. Genetic correlation estimates between visual scores and IPP were negative, varying from -0.18±0.03 to -0.29±0.02. Positive genetic correlations were obtained between the visual scores and PE, from 0.19±0.01 to 0.31±0.01. Animal selection with the highest visual scores, mainly those taken after the yearling age, allows to improve herd reproductive traits. |
id |
EMBRAPA-4_1f867b1aa348e1ecf6867b8b73b132fe |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/5640 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inferenceCorrelações genéticas entre escores visuais e características reprodutivas em bovinos Nelore usando inferência bayesianaconformation; age at first calving; muscling; scrotal circumference; finishingconformação; idade ao primeiro parto; musculatura; perímetro escrotal; precocidade.The aim of this work was to estimate the heritability and the genetic correlations between visual scores and reproductive traits of Nelore cattle. The traits evaluated were: finishing, muscling, and conformation scores at weaning (PD, MD, and CD, respectively) and yearling (PS, MS and CS, respectively); age at the first calving (IPP) and scrotal circumference (PE). The records of 66,244 animals born between 1990 and 2006 were used. The genetic parameters were estimated using bi-trait animal analyses with Bayesian inference. A linear model for IPP and PE and a nonlinear (threshold) model for visual scores were used. The heritability estimates were: CD, 0.19±0.02; PD, 0.23±0.02; MD, 0.20±0.02; CS, 0.26±0.01; PS, 0.33±0.02; MS, 0.32±0.02; IPP, 0.16±0.03; and PE, 0.36±0.02. Genetic correlation estimates between visual scores and IPP were negative, varying from -0.18±0.03 to -0.29±0.02. Positive genetic correlations were obtained between the visual scores and PE, from 0.19±0.01 to 0.31±0.01. Animal selection with the highest visual scores, mainly those taken after the yearling age, allows to improve herd reproductive traits. O objetivo deste trabalho foi estimar a herdabilidade e as correlações genéticas entre escores visuais e características reprodutivas de animais da raça Nelore. As características avaliadas foram: precocidade, musculatura, e escores de conformação à desmama (PD, MD e CD, respectivamente) e ao sobreano (PS, MS e CS, respectivamente); idade ao primeiro parto (IPP); e perímetro escrotal (PE). Foram utilizadas informações de 66.244 animais, nascidos entre 1990 e 2006. Os parâmetros genéticos foram estimados em análises bicaracterísticas, com inferência bayesiana. Foi utilizado um modelo linear para IPP e PE, e um modelo não linear ("threshold") para os escores visuais. As herdabilidades estimadas foram: CD, 0,19±0,02; PD, 0,23±0,02; MD, 0,20±0,02; CS, 0,26±0,01; PS, 0,33±0,02; MS, 0,32±0,02; IPP, 0,16±0,03; e PE, 0,36±0,02. As correlações genéticas estimadas entre os escores visuais e IPP foram negativas, de -0,18±0,03 a -0,29±0,02. Correlações genéticas positivas foram obtidas entre os escores visuais e o PE, de 0,19±0,01 a 0,31±0,01. A seleção de animais com os maiores escores visuais, principalmente ao sobreano, permite melhorar o desempenho reprodutivo dos rebanhos. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFAPESPBoligon, Arione AugustiAlbuquerque, Lucia Galvão de2011-03-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5640Pesquisa Agropecuaria Brasileira; v.45, n.12, dez. 2010; 1412-1418Pesquisa Agropecuária Brasileira; v.45, n.12, dez. 2010; 1412-14181678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5640/6161https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/5640/3039info:eu-repo/semantics/openAccess2014-11-14T18:20:16Zoai:ojs.seer.sct.embrapa.br:article/5640Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-14T18:20:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference Correlações genéticas entre escores visuais e características reprodutivas em bovinos Nelore usando inferência bayesiana |
title |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
spellingShingle |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference Boligon, Arione Augusti conformation; age at first calving; muscling; scrotal circumference; finishing conformação; idade ao primeiro parto; musculatura; perímetro escrotal; precocidade. |
title_short |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
title_full |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
title_fullStr |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
title_full_unstemmed |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
title_sort |
Genetic correlations between visual scores and reproductive traits in Nelore cattle using Bayesian inference |
author |
Boligon, Arione Augusti |
author_facet |
Boligon, Arione Augusti Albuquerque, Lucia Galvão de |
author_role |
author |
author2 |
Albuquerque, Lucia Galvão de |
author2_role |
author |
dc.contributor.none.fl_str_mv |
FAPESP |
dc.contributor.author.fl_str_mv |
Boligon, Arione Augusti Albuquerque, Lucia Galvão de |
dc.subject.none.fl_str_mv |
|
dc.subject.por.fl_str_mv |
conformation; age at first calving; muscling; scrotal circumference; finishing conformação; idade ao primeiro parto; musculatura; perímetro escrotal; precocidade. |
topic |
conformation; age at first calving; muscling; scrotal circumference; finishing conformação; idade ao primeiro parto; musculatura; perímetro escrotal; precocidade. |
description |
The aim of this work was to estimate the heritability and the genetic correlations between visual scores and reproductive traits of Nelore cattle. The traits evaluated were: finishing, muscling, and conformation scores at weaning (PD, MD, and CD, respectively) and yearling (PS, MS and CS, respectively); age at the first calving (IPP) and scrotal circumference (PE). The records of 66,244 animals born between 1990 and 2006 were used. The genetic parameters were estimated using bi-trait animal analyses with Bayesian inference. A linear model for IPP and PE and a nonlinear (threshold) model for visual scores were used. The heritability estimates were: CD, 0.19±0.02; PD, 0.23±0.02; MD, 0.20±0.02; CS, 0.26±0.01; PS, 0.33±0.02; MS, 0.32±0.02; IPP, 0.16±0.03; and PE, 0.36±0.02. Genetic correlation estimates between visual scores and IPP were negative, varying from -0.18±0.03 to -0.29±0.02. Positive genetic correlations were obtained between the visual scores and PE, from 0.19±0.01 to 0.31±0.01. Animal selection with the highest visual scores, mainly those taken after the yearling age, allows to improve herd reproductive traits. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-22 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5640 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5640 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5640/6161 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/5640/3039 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.45, n.12, dez. 2010; 1412-1418 Pesquisa Agropecuária Brasileira; v.45, n.12, dez. 2010; 1412-1418 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416712763211776 |