Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding

Detalhes bibliográficos
Autor(a) principal: Pacheco, Paulo Santana
Data de Publicação: 2014
Outros Autores: Restle, João, Vaz, Fabiano Nunes, Brondani, Ivan Luiz, Alves Filho, Dari Celestino, Silveira, Magali Floriano da, Segabinazzi, Luciane Rumpel, Freitas, Leandro da Silva, Severo, Marcelo Machado, Nigeliskii, André Fogaça
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/15090
Resumo: Carcass, leg and arm lengths of 876 steers originated from rotational crossbreeding between Charolais (C) and Nellore (N) breeds were evaluated. Two models were used in the analyses. In Model I, genetic effects were represented by breeding system - SA and genetic group nested within SA - GG(SA), being: C and N (straightbreds), 1/2C1/2N and 1/2N1/2C(G1), 3/4C1/4N and 3/4N1/4C(G2), 5/8C3/8N and 5/8N3/8C(G3) and 11/16C5/16N and 11/16N5/16C(G4). Model II corresponded to Model I, however, SA and GG(SA) were substituted by the covariables corresponding to the percentage of C breed of the steer (individual) and its mother (maternal) (additive genetic effect of C breed in relation to N), and the percentage of heterozygosis of the individual and its mother (non-additive genetic effect due to dominance). From the evaluated metric carcasses characteristics, carcass length was the most influenced by additive due to breed and heterotic genetic effects, being the individual component of more importance than maternal. C steers showed higher carcass length and lower leg and arm lengths than N. Heterosis was positive and when expressed in percentage, the values were similar for all metric carcasses characteristics. The possible non-additive genetic effects, represented by epistasis and linkage influenced the characteristics. The models were similar with respect to capacity of prediction of characteristics. The crossbreeding system used took advantage of heterosis and breed complementarity, on the carcass metric characteristics of steers submitted to production system with purpose of slaughter at two years of age.
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spelling Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreedingEfeitos genéticos aditivos e não aditivos, grupo genético e sistema de acasalamento nas características métricas da carcaça de novilhos oriundos do cruzamento alternado contínuo Charolês x NeloreBos indicusBos TaurusCrossbreeding systemsModel comparisonsMultiple regressionProduction of young steer.Bos indicusBos taurusComparação de modelosProdução de novilho jovemRegressão múltiplaSistemas de cruzamento.Ciências Agronômicas e Veterinárias/Zootecnia/Melhoramento AnimalCarcass, leg and arm lengths of 876 steers originated from rotational crossbreeding between Charolais (C) and Nellore (N) breeds were evaluated. Two models were used in the analyses. In Model I, genetic effects were represented by breeding system - SA and genetic group nested within SA - GG(SA), being: C and N (straightbreds), 1/2C1/2N and 1/2N1/2C(G1), 3/4C1/4N and 3/4N1/4C(G2), 5/8C3/8N and 5/8N3/8C(G3) and 11/16C5/16N and 11/16N5/16C(G4). Model II corresponded to Model I, however, SA and GG(SA) were substituted by the covariables corresponding to the percentage of C breed of the steer (individual) and its mother (maternal) (additive genetic effect of C breed in relation to N), and the percentage of heterozygosis of the individual and its mother (non-additive genetic effect due to dominance). From the evaluated metric carcasses characteristics, carcass length was the most influenced by additive due to breed and heterotic genetic effects, being the individual component of more importance than maternal. C steers showed higher carcass length and lower leg and arm lengths than N. Heterosis was positive and when expressed in percentage, the values were similar for all metric carcasses characteristics. The possible non-additive genetic effects, represented by epistasis and linkage influenced the characteristics. The models were similar with respect to capacity of prediction of characteristics. The crossbreeding system used took advantage of heterosis and breed complementarity, on the carcass metric characteristics of steers submitted to production system with purpose of slaughter at two years of age.Foram avaliados os comprimentos de carcaça, de perna e de braço das carcaças de 876 novilhos oriundos de gerações sucessivas do cruzamento rotativo entre as raças Charolesa (C) e Nelore (N). Na análise dos dados consideraram-se dois modelos. No Modelo I, os efeitos genéticos foram representados por sistema de acasalamento - SA e grupo genético dentro de sistema de acasalamento - GG(SA), sendo: C e N (definidos), 1/2C1/2N e 1/2N1/2C(G1), 3/4C1/4N e 3/4N1/4C(G2), 5/8C3/8N e 5/8N3/8C(G3) e 11/16C5/16N e 11/16N5/16C(G4). O Modelo II correspondeu ao Modelo I, no entanto, substituindo SA e GG(SA) pelas covariáveis representando a percentagem da raça C no novilho (individual) e na sua mãe (materno) (efeito genético aditivo da raça C em relação à N), e a percentagem de heterozigose no novilho e na sua mãe (efeito genético não-aditivo devido à dominância). Das características métricas da carcaça avaliadas, o comprimento de carcaça foi o mais influenciado pelos efeitos genéticos aditivos raciais e heteróticos, sendo o componente individual de maior importância do que o materno. A raça Charolesa apresentou maior comprimento de carcaça e menores de perna e de braço do que a raça Nelore. A heterose foi positiva e, quando expressa em percentagem, os valores foram muito próximos para todas as características métricas. Os possíveis efeitos genéticos não aditivos representados por epistasia e ligação gênica influenciaram as características da carne avaliadas. Os modelos avaliados se apresentaram similares quanto à eficiência de predição das características. O sistema de cruzamento utilizado é beneficiado pelos efeitos de heterose e complementaridade racial nas características métricas da carcaça de novilhos submetidos a sistema de produção visando o abate aos dois anos de idade.UEL2014-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimentalapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1509010.5433/1679-0359.2014v35n6p3319Semina: Ciências Agrárias; Vol. 35 No. 6 (2014); 3319-3330Semina: Ciências Agrárias; v. 35 n. 6 (2014); 3319-33301679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/15090/pdf_550Copyright (c) 2014 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessPacheco, Paulo SantanaRestle, JoãoVaz, Fabiano NunesBrondani, Ivan LuizAlves Filho, Dari CelestinoSilveira, Magali Floriano daSegabinazzi, Luciane RumpelFreitas, Leandro da SilvaSevero, Marcelo MachadoNigeliskii, André Fogaça2023-01-13T16:29:55Zoai:ojs.pkp.sfu.ca:article/15090Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-13T16:29:55Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
Efeitos genéticos aditivos e não aditivos, grupo genético e sistema de acasalamento nas características métricas da carcaça de novilhos oriundos do cruzamento alternado contínuo Charolês x Nelore
title Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
spellingShingle Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
Pacheco, Paulo Santana
Bos indicus
Bos Taurus
Crossbreeding systems
Model comparisons
Multiple regression
Production of young steer.
Bos indicus
Bos taurus
Comparação de modelos
Produção de novilho jovem
Regressão múltipla
Sistemas de cruzamento.
Ciências Agronômicas e Veterinárias/Zootecnia/Melhoramento Animal
title_short Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
title_full Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
title_fullStr Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
title_full_unstemmed Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
title_sort Additive and non-additive genetic effects, genetic group and breeding system on carcass metric characteristics of steers originated from Charolais x Nellore rotational crossbreeding
author Pacheco, Paulo Santana
author_facet Pacheco, Paulo Santana
Restle, João
Vaz, Fabiano Nunes
Brondani, Ivan Luiz
Alves Filho, Dari Celestino
Silveira, Magali Floriano da
Segabinazzi, Luciane Rumpel
Freitas, Leandro da Silva
Severo, Marcelo Machado
Nigeliskii, André Fogaça
author_role author
author2 Restle, João
Vaz, Fabiano Nunes
Brondani, Ivan Luiz
Alves Filho, Dari Celestino
Silveira, Magali Floriano da
Segabinazzi, Luciane Rumpel
Freitas, Leandro da Silva
Severo, Marcelo Machado
Nigeliskii, André Fogaça
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Pacheco, Paulo Santana
Restle, João
Vaz, Fabiano Nunes
Brondani, Ivan Luiz
Alves Filho, Dari Celestino
Silveira, Magali Floriano da
Segabinazzi, Luciane Rumpel
Freitas, Leandro da Silva
Severo, Marcelo Machado
Nigeliskii, André Fogaça
dc.subject.por.fl_str_mv Bos indicus
Bos Taurus
Crossbreeding systems
Model comparisons
Multiple regression
Production of young steer.
Bos indicus
Bos taurus
Comparação de modelos
Produção de novilho jovem
Regressão múltipla
Sistemas de cruzamento.
Ciências Agronômicas e Veterinárias/Zootecnia/Melhoramento Animal
topic Bos indicus
Bos Taurus
Crossbreeding systems
Model comparisons
Multiple regression
Production of young steer.
Bos indicus
Bos taurus
Comparação de modelos
Produção de novilho jovem
Regressão múltipla
Sistemas de cruzamento.
Ciências Agronômicas e Veterinárias/Zootecnia/Melhoramento Animal
description Carcass, leg and arm lengths of 876 steers originated from rotational crossbreeding between Charolais (C) and Nellore (N) breeds were evaluated. Two models were used in the analyses. In Model I, genetic effects were represented by breeding system - SA and genetic group nested within SA - GG(SA), being: C and N (straightbreds), 1/2C1/2N and 1/2N1/2C(G1), 3/4C1/4N and 3/4N1/4C(G2), 5/8C3/8N and 5/8N3/8C(G3) and 11/16C5/16N and 11/16N5/16C(G4). Model II corresponded to Model I, however, SA and GG(SA) were substituted by the covariables corresponding to the percentage of C breed of the steer (individual) and its mother (maternal) (additive genetic effect of C breed in relation to N), and the percentage of heterozygosis of the individual and its mother (non-additive genetic effect due to dominance). From the evaluated metric carcasses characteristics, carcass length was the most influenced by additive due to breed and heterotic genetic effects, being the individual component of more importance than maternal. C steers showed higher carcass length and lower leg and arm lengths than N. Heterosis was positive and when expressed in percentage, the values were similar for all metric carcasses characteristics. The possible non-additive genetic effects, represented by epistasis and linkage influenced the characteristics. The models were similar with respect to capacity of prediction of characteristics. The crossbreeding system used took advantage of heterosis and breed complementarity, on the carcass metric characteristics of steers submitted to production system with purpose of slaughter at two years of age.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-09
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/15090
10.5433/1679-0359.2014v35n6p3319
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/15090
identifier_str_mv 10.5433/1679-0359.2014v35n6p3319
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/15090/pdf_550
dc.rights.driver.fl_str_mv Copyright (c) 2014 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2014 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 35 No. 6 (2014); 3319-3330
Semina: Ciências Agrárias; v. 35 n. 6 (2014); 3319-3330
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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