Estimates of heritability and genetic correlations for meat quality traits in broilers
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , |
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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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 |
_version_ |
1800222791512883200 |