Estimates of heritability and genetic correlations for meat quality traits in broilers

Detalhes bibliográficos
Autor(a) principal: Gaya, Leila de Genova
Data de Publicação: 2011
Outros Autores: Mourão, Gerson Barreto, Ferraz, José Bento Sterman, Mattos, Elisângela Chicaroni de, Costa, Andrezza Marcovig Moreira Alves da, Michelan Filho, Tércio, Rosa, Alessandra Fernandes, Felício, Andrezza Maria, Eler, Joanir Pereira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: https://www.revistas.usp.br/sa/article/view/22717
Resumo: Broiler meat quality is one of the primary factors considered by the poultry industry. This study was conducted to estimate heritability and genetic correlation coefficients for meat quality traits in a single male broiler line. The meat ultimate pH (24 h after slaughter) and lightness presented the highest heritability estimates. Given the estimated genetic correlations, the pH measured at 15 min and 24 h after slaughtering, as well as lightness, were characterized by a close and negative genetic relationship with water holding capacity traits. In contrast, meat quality traits exhibited only non-significant genetic correlations with performance and carcass traits. Noticed exceptions were breast weight, which was genetically and favorably associated with the initial pH and thawing-cooking losses, and ultrasound record of pectoral muscle depth, which was genetically and unfavourably associated with the shear force of meat. Meat pH values at 24 h after slaughtering or lightness may be a favorable selection criterion for the poultry industry for improving meat quality, since these traits are associated with the water holding capacity of the meat. Out of the traits studied, lightness is most easily assessed on the industrial slaughtering line. The direct selection for breast weight could improve the initial pH and thawing-cooking losses of meat, even as selection for ultrasound records of Pectoralis major may affect the meat tenderness in this line
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spelling Estimates of heritability and genetic correlations for meat quality traits in broilers animal breedinggenetic parameterspoultry Broiler meat quality is one of the primary factors considered by the poultry industry. This study was conducted to estimate heritability and genetic correlation coefficients for meat quality traits in a single male broiler line. The meat ultimate pH (24 h after slaughter) and lightness presented the highest heritability estimates. Given the estimated genetic correlations, the pH measured at 15 min and 24 h after slaughtering, as well as lightness, were characterized by a close and negative genetic relationship with water holding capacity traits. In contrast, meat quality traits exhibited only non-significant genetic correlations with performance and carcass traits. Noticed exceptions were breast weight, which was genetically and favorably associated with the initial pH and thawing-cooking losses, and ultrasound record of pectoral muscle depth, which was genetically and unfavourably associated with the shear force of meat. Meat pH values at 24 h after slaughtering or lightness may be a favorable selection criterion for the poultry industry for improving meat quality, since these traits are associated with the water holding capacity of the meat. Out of the traits studied, lightness is most easily assessed on the industrial slaughtering line. The direct selection for breast weight could improve the initial pH and thawing-cooking losses of meat, even as selection for ultrasound records of Pectoralis major may affect the meat tenderness in this line Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/2271710.1590/S0103-90162011000600002Scientia Agricola; v. 68 n. 6 (2011); 620-625Scientia Agricola; Vol. 68 Núm. 6 (2011); 620-625Scientia Agricola; Vol. 68 No. 6 (2011); 620-6251678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/22717/24741Copyright (c) 2015 Scientia Agricolainfo:eu-repo/semantics/openAccessGaya, Leila de GenovaMourão, Gerson BarretoFerraz, José Bento StermanMattos, Elisângela Chicaroni deCosta, Andrezza Marcovig Moreira Alves daMichelan Filho, TércioRosa, Alessandra FernandesFelício, Andrezza MariaEler, Joanir Pereira2015-07-07T19:13:58Zoai:revistas.usp.br:article/22717Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2015-07-07T19:13:58Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Estimates of heritability and genetic correlations for meat quality traits in broilers
title Estimates of heritability and genetic correlations for meat quality traits in broilers
spellingShingle Estimates of heritability and genetic correlations for meat quality traits in broilers
Gaya, Leila de Genova
animal breeding
genetic parameters
poultry
title_short Estimates of heritability and genetic correlations for meat quality traits in broilers
title_full Estimates of heritability and genetic correlations for meat quality traits in broilers
title_fullStr Estimates of heritability and genetic correlations for meat quality traits in broilers
title_full_unstemmed Estimates of heritability and genetic correlations for meat quality traits in broilers
title_sort Estimates of heritability and genetic correlations for meat quality traits in broilers
author Gaya, Leila de Genova
author_facet Gaya, Leila de Genova
Mourão, Gerson Barreto
Ferraz, José Bento Sterman
Mattos, Elisângela Chicaroni de
Costa, Andrezza Marcovig Moreira Alves da
Michelan Filho, Tércio
Rosa, Alessandra Fernandes
Felício, Andrezza Maria
Eler, Joanir Pereira
author_role author
author2 Mourão, Gerson Barreto
Ferraz, José Bento Sterman
Mattos, Elisângela Chicaroni de
Costa, Andrezza Marcovig Moreira Alves da
Michelan Filho, Tércio
Rosa, Alessandra Fernandes
Felício, Andrezza Maria
Eler, Joanir Pereira
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gaya, Leila de Genova
Mourão, Gerson Barreto
Ferraz, José Bento Sterman
Mattos, Elisângela Chicaroni de
Costa, Andrezza Marcovig Moreira Alves da
Michelan Filho, Tércio
Rosa, Alessandra Fernandes
Felício, Andrezza Maria
Eler, Joanir Pereira
dc.subject.por.fl_str_mv animal breeding
genetic parameters
poultry
topic animal breeding
genetic parameters
poultry
description Broiler meat quality is one of the primary factors considered by the poultry industry. This study was conducted to estimate heritability and genetic correlation coefficients for meat quality traits in a single male broiler line. The meat ultimate pH (24 h after slaughter) and lightness presented the highest heritability estimates. Given the estimated genetic correlations, the pH measured at 15 min and 24 h after slaughtering, as well as lightness, were characterized by a close and negative genetic relationship with water holding capacity traits. In contrast, meat quality traits exhibited only non-significant genetic correlations with performance and carcass traits. Noticed exceptions were breast weight, which was genetically and favorably associated with the initial pH and thawing-cooking losses, and ultrasound record of pectoral muscle depth, which was genetically and unfavourably associated with the shear force of meat. Meat pH values at 24 h after slaughtering or lightness may be a favorable selection criterion for the poultry industry for improving meat quality, since these traits are associated with the water holding capacity of the meat. Out of the traits studied, lightness is most easily assessed on the industrial slaughtering line. The direct selection for breast weight could improve the initial pH and thawing-cooking losses of meat, even as selection for ultrasound records of Pectoralis major may affect the meat tenderness in this line
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
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://www.revistas.usp.br/sa/article/view/22717
10.1590/S0103-90162011000600002
url https://www.revistas.usp.br/sa/article/view/22717
identifier_str_mv 10.1590/S0103-90162011000600002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/sa/article/view/22717/24741
dc.rights.driver.fl_str_mv Copyright (c) 2015 Scientia Agricola
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 Scientia Agricola
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
dc.source.none.fl_str_mv Scientia Agricola; v. 68 n. 6 (2011); 620-625
Scientia Agricola; Vol. 68 Núm. 6 (2011); 620-625
Scientia Agricola; Vol. 68 No. 6 (2011); 620-625
1678-992X
0103-9016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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