Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/227148 |
Resumo: | The objectives of this study were to estimate genetic parameters involving yearling weight (Ps), carcass weight (Pc), hip height (Ag) and the scores of conformation (C), precocity (P) and musculature (M) and carcass yield (Rd) and finishing score (Ac) in Nellore cattle in order to define criteria for selection in this breed. The data of the 20 732 animals were obtained from Agropecuária Jacarezinho, SP. Data were analyzed by restricted maximum likelihood using animal model multi-trait analysis, which included fixed effects of contemporary groups (animals born at the same month and slaughtered on the same day) and the covariate age at slaughter (linear) for carcass traits, and contemporary groups (animals of the same farm, age, sex and management group at weaning and yearling) and yearling age (linear) for growth and as random, the additive effects and residual effects. Estimates ranged from 0.13 (Ac and Rd) to 0.36 (Ag) for heritability and from -0.59 ± 0.62 (Rd with Ac) to 0.71 ± 0.17 (Pc with C) for genetic correlations. Selection for Pc, C, P, M, Ag or Ps may be efficient because their heritability estimates are of magnitude moderate. Selection for Ps and C can favor heavier Pc, considering their positive and high genetic correlation. © Archivos de Zootecnia. |
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Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça NeloreGenetic parameters of carcass and growth traits of Nellore cattleConformationMusculaturePrecocityYearling weightThe objectives of this study were to estimate genetic parameters involving yearling weight (Ps), carcass weight (Pc), hip height (Ag) and the scores of conformation (C), precocity (P) and musculature (M) and carcass yield (Rd) and finishing score (Ac) in Nellore cattle in order to define criteria for selection in this breed. The data of the 20 732 animals were obtained from Agropecuária Jacarezinho, SP. Data were analyzed by restricted maximum likelihood using animal model multi-trait analysis, which included fixed effects of contemporary groups (animals born at the same month and slaughtered on the same day) and the covariate age at slaughter (linear) for carcass traits, and contemporary groups (animals of the same farm, age, sex and management group at weaning and yearling) and yearling age (linear) for growth and as random, the additive effects and residual effects. Estimates ranged from 0.13 (Ac and Rd) to 0.36 (Ag) for heritability and from -0.59 ± 0.62 (Rd with Ac) to 0.71 ± 0.17 (Pc with C) for genetic correlations. Selection for Pc, C, P, M, Ag or Ps may be efficient because their heritability estimates are of magnitude moderate. Selection for Ps and C can favor heavier Pc, considering their positive and high genetic correlation. © Archivos de Zootecnia.Departamento de Zootecnia FCAV/UNESP, Jaboticabal, SPDepartamento de Ciências Exatas FCAV/UNESP, Jaboticabal, SPDepartamento de Melhoramento e Nutrição Animal FMVZ/UNESP, Botucatu, SPDepartamento de Zootecnia FCAV/UNESP, Jaboticabal, SPDepartamento de Ciências Exatas FCAV/UNESP, Jaboticabal, SPDepartamento de Melhoramento e Nutrição Animal FMVZ/UNESP, Botucatu, SPUniversidade Estadual Paulista (UNESP)Ferriani, L.Albuquerque, L. G. [UNESP]Baldi, F. S.B. [UNESP]Venturini, G. C. [UNESP]Bignardi, A. B. [UNESP]Silva, J. A.V. [UNESP]Chud, T. C.S. [UNESP]Munari, D. P. [UNESP]Oliveira, J. A. [UNESP]2022-04-29T07:11:45Z2022-04-29T07:11:45Z2012-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-7Archivos de Zootecnia, v. 61, n. 236, p. 1-7, 2012.0004-05921885-4494http://hdl.handle.net/11449/2271482-s2.0-84875395839Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporArchivos de Zootecniainfo:eu-repo/semantics/openAccess2024-09-06T18:55:50Zoai:repositorio.unesp.br:11449/227148Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-06T18:55:50Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore Genetic parameters of carcass and growth traits of Nellore cattle |
title |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
spellingShingle |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore Ferriani, L. Conformation Musculature Precocity Yearling weight |
title_short |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
title_full |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
title_fullStr |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
title_full_unstemmed |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
title_sort |
Parâmetros genéticos de características de carcaça e de crescimento de bovinos da raça Nelore |
author |
Ferriani, L. |
author_facet |
Ferriani, L. Albuquerque, L. G. [UNESP] Baldi, F. S.B. [UNESP] Venturini, G. C. [UNESP] Bignardi, A. B. [UNESP] Silva, J. A.V. [UNESP] Chud, T. C.S. [UNESP] Munari, D. P. [UNESP] Oliveira, J. A. [UNESP] |
author_role |
author |
author2 |
Albuquerque, L. G. [UNESP] Baldi, F. S.B. [UNESP] Venturini, G. C. [UNESP] Bignardi, A. B. [UNESP] Silva, J. A.V. [UNESP] Chud, T. C.S. [UNESP] Munari, D. P. [UNESP] Oliveira, J. A. [UNESP] |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Ferriani, L. Albuquerque, L. G. [UNESP] Baldi, F. S.B. [UNESP] Venturini, G. C. [UNESP] Bignardi, A. B. [UNESP] Silva, J. A.V. [UNESP] Chud, T. C.S. [UNESP] Munari, D. P. [UNESP] Oliveira, J. A. [UNESP] |
dc.subject.por.fl_str_mv |
Conformation Musculature Precocity Yearling weight |
topic |
Conformation Musculature Precocity Yearling weight |
description |
The objectives of this study were to estimate genetic parameters involving yearling weight (Ps), carcass weight (Pc), hip height (Ag) and the scores of conformation (C), precocity (P) and musculature (M) and carcass yield (Rd) and finishing score (Ac) in Nellore cattle in order to define criteria for selection in this breed. The data of the 20 732 animals were obtained from Agropecuária Jacarezinho, SP. Data were analyzed by restricted maximum likelihood using animal model multi-trait analysis, which included fixed effects of contemporary groups (animals born at the same month and slaughtered on the same day) and the covariate age at slaughter (linear) for carcass traits, and contemporary groups (animals of the same farm, age, sex and management group at weaning and yearling) and yearling age (linear) for growth and as random, the additive effects and residual effects. Estimates ranged from 0.13 (Ac and Rd) to 0.36 (Ag) for heritability and from -0.59 ± 0.62 (Rd with Ac) to 0.71 ± 0.17 (Pc with C) for genetic correlations. Selection for Pc, C, P, M, Ag or Ps may be efficient because their heritability estimates are of magnitude moderate. Selection for Ps and C can favor heavier Pc, considering their positive and high genetic correlation. © Archivos de Zootecnia. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-01 2022-04-29T07:11:45Z 2022-04-29T07:11:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Archivos de Zootecnia, v. 61, n. 236, p. 1-7, 2012. 0004-0592 1885-4494 http://hdl.handle.net/11449/227148 2-s2.0-84875395839 |
identifier_str_mv |
Archivos de Zootecnia, v. 61, n. 236, p. 1-7, 2012. 0004-0592 1885-4494 2-s2.0-84875395839 |
url |
http://hdl.handle.net/11449/227148 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Archivos de Zootecnia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-7 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021344989937664 |