Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim

Detalhes bibliográficos
Autor(a) principal: Baldi, Fernando [UNESP]
Data de Publicação: 2008
Outros Autores: De Alencar, Mauricio Mello, De Freitas, Alfredo Ribeiro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1516-35982008000300006
http://hdl.handle.net/11449/70334
Resumo: The objectives of this study were to obtain heritability estimates for number (NBZ10 and NBZT) and kilograms (QBD10 and QBDT) of calves weaned up to ten years of age and during herd life, kilograms of calves weaned per year in herd (QTPR) and their genetic correlations with culling age, ages at first, at second and at third calving, adjusted and unadjusted weights for condition score, body size indexes and condition score at first mating, at first calving and at mature age. Variance and covariance components were estimated by REML using univariate and bivariate models including the fixed effect of contemporary group and additive direct genetic and residual as random effects. Heritability estimates obtained from univariate analyses were 0.10 ± 0.05 (NBZT), 0.10 ± 0.03 (QBDT), 0.12 ± 0.05 (NBZ10), 0.13 ± 0.05 (QBD10) and 0.15 ± 0.05 (QTPR) and indicate low response by selection on these traits. Genetic correlation estimate suggest that selection for reducing age at first calving will not improve cow productivity. Selection for increasing mature weight will reduce kilograms of calves weaned per year in herd and the number of calves weaned up to ten years of age and during herd life. Selection on body size indexes and on cow weights adjusted for condition score may result in similar correlated responses in productive traits of cows, which would be higher than those from selection on unadjusted cow weights. © 2008 Sociedade Brasileira de Zootecnia.
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spelling Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça CanchimGenetic correlations among cow body size, condition score and productive traits in Canchim cowsBeef cattleCow body sizeGenetic parametersKilograms of weaned calvesNumber of weaned calvesBosThe objectives of this study were to obtain heritability estimates for number (NBZ10 and NBZT) and kilograms (QBD10 and QBDT) of calves weaned up to ten years of age and during herd life, kilograms of calves weaned per year in herd (QTPR) and their genetic correlations with culling age, ages at first, at second and at third calving, adjusted and unadjusted weights for condition score, body size indexes and condition score at first mating, at first calving and at mature age. Variance and covariance components were estimated by REML using univariate and bivariate models including the fixed effect of contemporary group and additive direct genetic and residual as random effects. Heritability estimates obtained from univariate analyses were 0.10 ± 0.05 (NBZT), 0.10 ± 0.03 (QBDT), 0.12 ± 0.05 (NBZ10), 0.13 ± 0.05 (QBD10) and 0.15 ± 0.05 (QTPR) and indicate low response by selection on these traits. Genetic correlation estimate suggest that selection for reducing age at first calving will not improve cow productivity. Selection for increasing mature weight will reduce kilograms of calves weaned per year in herd and the number of calves weaned up to ten years of age and during herd life. Selection on body size indexes and on cow weights adjusted for condition score may result in similar correlated responses in productive traits of cows, which would be higher than those from selection on unadjusted cow weights. © 2008 Sociedade Brasileira de Zootecnia.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Programa de Pós-graduação em Zootecnia UNESP Campus de Jaboticabal, SP, CEP: 14884-900Embrapa Pecuária Sudeste CNPq, CEP: 13560-970, São PauloPrograma de Pós-graduação em Zootecnia UNESP Campus de Jaboticabal, SP, CEP: 14884-900Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Baldi, Fernando [UNESP]De Alencar, Mauricio MelloDe Freitas, Alfredo Ribeiro2014-05-27T11:22:49Z2014-05-27T11:22:49Z2008-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article420-426application/pdfhttp://dx.doi.org/10.1590/S1516-35982008000300006Revista Brasileira de Zootecnia, v. 37, n. 3, p. 420-426, 2008.1516-35981806-9290http://hdl.handle.net/11449/7033410.1590/S1516-35982008000300006S1516-35982008000300006WOS:0002543873000062-s2.0-416491191512-s2.0-41649119151.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecnia0.7350,337info:eu-repo/semantics/openAccess2024-06-07T18:42:33Zoai:repositorio.unesp.br:11449/70334Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:12:54.257180Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
Genetic correlations among cow body size, condition score and productive traits in Canchim cows
title Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
spellingShingle Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
Baldi, Fernando [UNESP]
Beef cattle
Cow body size
Genetic parameters
Kilograms of weaned calves
Number of weaned calves
Bos
title_short Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
title_full Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
title_fullStr Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
title_full_unstemmed Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
title_sort Correlações genéticas de características de tamanho corporal e condição corporal com características de eficiência produtiva de fêmeas da raça Canchim
author Baldi, Fernando [UNESP]
author_facet Baldi, Fernando [UNESP]
De Alencar, Mauricio Mello
De Freitas, Alfredo Ribeiro
author_role author
author2 De Alencar, Mauricio Mello
De Freitas, Alfredo Ribeiro
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Baldi, Fernando [UNESP]
De Alencar, Mauricio Mello
De Freitas, Alfredo Ribeiro
dc.subject.por.fl_str_mv Beef cattle
Cow body size
Genetic parameters
Kilograms of weaned calves
Number of weaned calves
Bos
topic Beef cattle
Cow body size
Genetic parameters
Kilograms of weaned calves
Number of weaned calves
Bos
description The objectives of this study were to obtain heritability estimates for number (NBZ10 and NBZT) and kilograms (QBD10 and QBDT) of calves weaned up to ten years of age and during herd life, kilograms of calves weaned per year in herd (QTPR) and their genetic correlations with culling age, ages at first, at second and at third calving, adjusted and unadjusted weights for condition score, body size indexes and condition score at first mating, at first calving and at mature age. Variance and covariance components were estimated by REML using univariate and bivariate models including the fixed effect of contemporary group and additive direct genetic and residual as random effects. Heritability estimates obtained from univariate analyses were 0.10 ± 0.05 (NBZT), 0.10 ± 0.03 (QBDT), 0.12 ± 0.05 (NBZ10), 0.13 ± 0.05 (QBD10) and 0.15 ± 0.05 (QTPR) and indicate low response by selection on these traits. Genetic correlation estimate suggest that selection for reducing age at first calving will not improve cow productivity. Selection for increasing mature weight will reduce kilograms of calves weaned per year in herd and the number of calves weaned up to ten years of age and during herd life. Selection on body size indexes and on cow weights adjusted for condition score may result in similar correlated responses in productive traits of cows, which would be higher than those from selection on unadjusted cow weights. © 2008 Sociedade Brasileira de Zootecnia.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
2014-05-27T11:22:49Z
2014-05-27T11:22:49Z
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 http://dx.doi.org/10.1590/S1516-35982008000300006
Revista Brasileira de Zootecnia, v. 37, n. 3, p. 420-426, 2008.
1516-3598
1806-9290
http://hdl.handle.net/11449/70334
10.1590/S1516-35982008000300006
S1516-35982008000300006
WOS:000254387300006
2-s2.0-41649119151
2-s2.0-41649119151.pdf
url http://dx.doi.org/10.1590/S1516-35982008000300006
http://hdl.handle.net/11449/70334
identifier_str_mv Revista Brasileira de Zootecnia, v. 37, n. 3, p. 420-426, 2008.
1516-3598
1806-9290
10.1590/S1516-35982008000300006
S1516-35982008000300006
WOS:000254387300006
2-s2.0-41649119151
2-s2.0-41649119151.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileira de Zootecnia
0.735
0,337
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 420-426
application/pdf
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
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