Estimating genetic parameters of reproductive, carcass, and meat quality traits in Polled Nellore cattle

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Goiás (UFG)-
Autor(es): dc.contributorUniversity of Wisconsin-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorFoundation for Research Support of the State of Goiás-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of California-
Autor(es): dc.creatorMamede, M. M.S.-
Autor(es): dc.creatorRosa, G. J.M.-
Autor(es): dc.creatorEifert, E. C.-
Autor(es): dc.creatorLopes, F. B.-
Autor(es): dc.creatorBaldi, F.-
Autor(es): dc.creatorCosta, M. F.-
Autor(es): dc.creatorSainz, R. D.-
Autor(es): dc.creatorCarmo, A. S.-
Autor(es): dc.creatorMascioli, A. S.-
Autor(es): dc.creatorMagnabosco, C. U.-
Data de aceite: dc.date.accessioned2025-08-21T17:15:28Z-
Data de disponibilização: dc.date.available2025-08-21T17:15:28Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11250-023-03541-3-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247047-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247047-
Descrição: dc.descriptionConsidering the economic and commercial efficiency of the beef production chain, the yield and quality of the meat produced must also be included in breeding programs. For the Nellore breed, including the polled herd, these aspects have not been much studied. The aim of this study was to estimate genetic parameters for scrotal circumference adjusted to 365 (SC365) and 450 (SC450) days of age, age at first calving (AFC), accumulated productivity (AP), stayability (STAY), longissimus muscle area (LMA), thickness of subcutaneous fat over the 12th–13th ribs (BF), thickness of subcutaneous fat over the rump (RF), and shear force measured by Warner-Bratzler shear force (WBSF) of polled Nellore cattle. Bayesian analyses were performed by adopting a linear animal model, whereas STAY analyses used the linear threshold model. Heritability estimates were 0.31 (SC365), 0.37 (SC450), 0.16 (AFC), 0.25 (AP), 0.16 (STAY), 0.30 (LMA), 0.13 (BF), 0.24 (RF), and 0.15 (WBSF), indicating moderate response to selection. Genetic and residual correlations between SC365 and SC450 were high (0.91 and 0.74, respectively), as well as the genetic correlations of AP with SC365, SC450, AFC, and STAY (0.61, 0.62, − 0.69, and 0.83, respectively). Genetic and residual correlations of WBSF with reproductive and carcass characteristics exhibited high standard deviations, however favorable. Based on the results, it is expected that in the medium term, animals with greater sexual precocity will also have greater accumulated productivity and longer permanence of females in the herd, along with superior carcass traits. However, due to the low heritabilities and small genetic associations with reproductive traits, fat thickness characteristics (BF and RF) will still require direct selection.-
Descrição: dc.descriptionEmbrapa Mandioca e Fruticultura-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSchool of Veterinary and Animal Science Federal University of Goiás, GO-
Descrição: dc.descriptionDepartment of Animal Science University of Wisconsin-
Descrição: dc.descriptionEmbrapa Cerrados, DF-
Descrição: dc.descriptionFoundation for Research Support of the State of Goiás, GO-
Descrição: dc.descriptionFaculty of Agrarian and Veterinary Sciences State University of São Paulo, SP-
Descrição: dc.descriptionEmbrapa Rice and Beans, GO-
Descrição: dc.descriptionDepartment of Animal Science University of California-
Descrição: dc.descriptionEmbrapa Mandioca e Fruticultura: 020802006-
Descrição: dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária: 020802006-
Descrição: dc.descriptionCNPq: 450417/2014-0-
Idioma: dc.languageen-
Relação: dc.relationTropical Animal Health and Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAccumulated productivity-
Palavras-chave: dc.subjectAge at first calving-
Palavras-chave: dc.subjectScrotal circumference-
Palavras-chave: dc.subjectShear force-
Palavras-chave: dc.subjectUltrasound analysis-
Título: dc.titleEstimating genetic parameters of reproductive, carcass, and meat quality traits in Polled Nellore cattle-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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