Genetic correlations between mature cow weight and productive and reproductive traits in Nellore cattle

Página do item simplificado
dc.contributor.authorRegatieri, I. C. [UNESP]
dc.contributor.authorBoligon, A. A. [UNESP]
dc.contributor.authorBaldi, Fernando [UNESP]
dc.contributor.authorAlbuquerque, Lucia Galvão de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:21Z
dc.date.available2014-05-27T11:27:21Z
dc.date.issued2012-12-01
dc.description.abstractWe investigated genetic associations between mature cow weight (MW) and weaning weight (WW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to yearling (GWY), weaning hip height (WHH), yearling hip height (YHH), scrotal circumference (SC), and age at first calving (AFC). Data from 127,104 Nellore animals born between 1993 and 2006, belonging to Agropecuária Jacarezinho Ltda., were analyzed. (Co)variance components were obtained by the restricted maximum likelihood method, applying an animal model in a multi-traits analysis. The model included direct genetic and residual effects as random effects, the fixed effects of contemporary group, and the linear and quadratic effects of animal age at recording (except for AFC, GBW, and GWY) and age of cow at calving as covariates (except for MW). The numbers of days from birth to weaning and from weaning to yearling were included as covariates for GBW and GWY, respectively. Estimated direct heritabilities were 0.43 ± 0.02 (MW), 0.33 ± 0.01 (WW), 0.36 ± 0.01 (YW), 0.28 ± 0.02 (GBW), 0.31 ± 0.01 (GWY), 0.44 ± 0.02 (WHH), 0.48 ± 0.02 (YHH), 0.44 ± 0.01 (SC), and 0.16 ± 0.03 (AFC). Genetic correlations between MW and productive traits were positive and of medium to high magnitude (ranging from 0.47 ± 0.03 to 0.71 ± 0.01). A positive and low genetic correlation was observed between MW and SC (0.24 ± 0.04). A negative genetic correlation (-0.19 ± 0.03) was estimated between MW and AFC. Selection to increase weight or weight gains at any age, as well as hip height, will change MW in the same direction. Selection for higher SC may lead to a long-term increase in MW. The AFC can be included in selection indices to improve the reproductive performance of beef cattle without significant changes in MW.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent2979-2986
dc.identifierhttp://dx.doi.org/10.4238/2012.May.10.4
dc.identifier.citationGenetics and molecular research : GMR, v. 11, n. 3, p. 2979-2986, 2012.
dc.identifier.doi10.4238/2012.May.10.4
dc.identifier.file2-s2.0-84872051939.pdf
dc.identifier.issn1676-5680
dc.identifier.lattes5866981114947883
dc.identifier.scopus2-s2.0-84872051939
dc.identifier.urihttp://hdl.handle.net/11449/73903
dc.identifier.wosWOS:000308817800117
dc.language.isoeng
dc.relation.ispartofGenetics and molecular research : GMR
dc.relation.ispartofsjr0,439
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectaging
dc.subjectanimal
dc.subjectbody weight
dc.subjectcattle
dc.subjectfemale
dc.subjectgenetics
dc.subjectgrowth, development and aging
dc.subjectinheritance
dc.subjectmale
dc.subjectphenotype
dc.subjectquantitative trait
dc.subjectreproduction
dc.subjectAging
dc.subjectAnimals
dc.subjectBody Weight
dc.subjectCattle
dc.subjectFemale
dc.subjectInheritance Patterns
dc.subjectMale
dc.subjectPhenotype
dc.subjectQuantitative Trait, Heritable
dc.subjectReproduction
dc.titleGenetic correlations between mature cow weight and productive and reproductive traits in Nellore cattleen
dc.typeArtigo
dcterms.licensehttp://www.geneticsmr.com/node/5
unesp.author.lattes5866981114947883
unesp.author.orcid0000-0002-2030-7590[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentZootecnia - FCAVpt

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
2-s2.0-84872051939.pdf
Tamanho:
401.49 KB
Formato:
Adobe Portable Document Format
Baixar

Coleções

Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias