Phenotypic, genetic and environmental parameters for traits related to femur bone integrity and body weight at 42 days of age in a broiler population

Página do item simplificado
dc.contributor.authorGrupioni, N. V. [UNESP]
dc.contributor.authorCruz, V. A. R. [UNESP]
dc.contributor.authorStafuzza, N. B. [UNESP]
dc.contributor.authorFreitas, L. A. [UNESP]
dc.contributor.authorRamos, S. B. [UNESP]
dc.contributor.authorSavegnago, R. P. [UNESP]
dc.contributor.authorPeixoto, J. O.
dc.contributor.authorLedur, M. C.
dc.contributor.authorMunari, D. P. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2015-12-07T15:40:10Z
dc.date.available2015-12-07T15:40:10Z
dc.date.issued2015-11-01
dc.description.abstractIntense selection among broilers, especially for performance and carcass traits, currently favors locomotion problems and bone resistance. Conducting studies relating to development and growth of bone tissue in broilers is necessary to minimize losses. Thus, genetic parameters were estimated for a broiler population's phenotypic traits such as BW at 42 d of age (BW42), chilled femur weight (CFW) and its yield (CFY), and femur measurements: calcium, DM, magnesium, phosphorus, and zinc content; breaking strength; rigidity; length; and thickness. Variance components were estimated through multitrait analyses using the restricted maximum likelihood method. The model included a fixed group effect (sex and hatch) and additive and residual genetic random effects. The heritability estimates we obtained ranged from 0.10 ± 0.05 to 0.50 ± 0.08 for chilled femur yield and BW42, respectively, and indicated that the traits can respond to the selection process, except for CFY, which presented low-magnitude heritability coefficients. Genetic correlation estimates between breaking strength, rigidity, and traits related to mineral content indicated that selection that aims to improve the breaking strength resistance of the femur is highly correlated with mineral content. Given the genetic correlation estimates between BW42 and minerals, it is suggested that in this population, selection for BW42 can be performed with greater intensity without affecting femoral integrity.en
dc.description.affiliationDepartamento de Ciências Exatas, Faculdade de Ciências Agrarias e Veterinárias (FCAV)/Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil 14884-900
dc.description.affiliationEmbrapa Suínos e Aves, Concórdia, Santa Catarina, Brazil 89700-000.
dc.description.affiliationDepartamento de Ciências Exatas, Faculdade de Ciências Agrarias e Veterinárias (FCAV)/Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil 14884-900
dc.description.affiliationUnespDepartamento de Ciências Exatas, Faculdade de Ciências Agrarias e Veterinárias (FCAV)/Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil 14884-900.
dc.description.affiliationUnespDepartamento de Ciências Exatas, Faculdade de Ciências Agrarias e Veterinárias (FCAV)/Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil 14884-900
dc.format.extent2604-2607
dc.identifierhttp://dx.doi.org/10.3382/ps/pev257
dc.identifier.citationPoultry Science, v. 94, n. 11, p. 2604-2607, 2015.
dc.identifier.doi10.3382/ps/pev257
dc.identifier.issn0032-5791
dc.identifier.lattes6064277731903249
dc.identifier.pubmed26374848
dc.identifier.urihttp://hdl.handle.net/11449/131677
dc.language.isoeng
dc.publisherPoultry Science Association Inc.
dc.relation.ispartofPoultry Science
dc.relation.ispartofjcr2.216
dc.relation.ispartofsjr1,112
dc.rights.accessRightsAcesso restrito
dc.sourcePubMed
dc.subjectBody weighten
dc.subjectFemur mineral contenten
dc.subjectGenetic correlationen
dc.subjectQuantitative traiten
dc.subjectSelectionen
dc.titlePhenotypic, genetic and environmental parameters for traits related to femur bone integrity and body weight at 42 days of age in a broiler populationen
dc.typeArtigo
dcterms.rightsHolderPoultry Science Association Inc
unesp.author.lattes6064277731903249
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

Arquivos

Coleções

Artigos - Ciências Exatas - FCAV