Genotype x environment interaction for age at first calving in Brazilian and Colombian Holsteins

Página do item simplificado
dc.contributor.authorCerón-Muñoz, M. F.
dc.contributor.authorTonhati, Humberto [UNESP]
dc.contributor.authorCosta, C. N.
dc.contributor.authorMaldonado-Estrada, J.
dc.contributor.authorRojas-Sarmiento, D.
dc.contributor.institutionGRICA-FCA-Universidad de Antioquia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionCentauro-FCA-Univ. de Antioquia
dc.contributor.institutionAsociacion Holstein de Colombia
dc.date.accessioned2014-05-27T11:21:07Z
dc.date.available2014-05-27T11:21:07Z
dc.date.issued2004-08-01
dc.description.abstractThe objective was to determine whether there is a genotype x environment interaction for age at first calving (AFC) in Holstein cattle in Brazil and Colombia. Data included 51,239 and 25,569 first-lactation records from Brazil and Colombia, respectively. Of 4230 sires in the data, 530 were North American sires used in both countries. Analyses were done using the REML bi-trait animal model, and AFC was considered as a distinct characteristic in each country. Fixed effects of contemporary group (herd-calving year), sire genetic group, and cow genetic group, and random effects of animal and residual variation were included in the model. Average AFC in Brazil and Colombia were 29.5 ± 4.0 and 32.1 ± 3.5 mo, respectively. Additive and residual genetic components and heritability coefficient for AFC in Brazil were 2.21 mo 2, 9.41 mo 2, and 0.19, respectively, whereas for Colombia, they were 1.02 mo 2, 6.84 mo 2, and 0.13, respectively. The genetic correlation of AFC between Brazil and Colombia was 0.78, indicating differences in ranking of sires consistent with a genotype x environment interaction. Therefore, in countries with differing environments, progeny of Holstein sires may calve at relatively younger or older ages compared with contemporary herdmates in one environment versus another.en
dc.description.affiliationGRICA-FCA-Universidad de Antioquia
dc.description.affiliationFCAV-Universidade Estadual Paulista, Jaboticabal, SP
dc.description.affiliationEmbrapa Gado de Leite, Juiz de Fora, MG
dc.description.affiliationCentauro-FCA-Univ. de Antioquia, Medellín
dc.description.affiliationAsociacion Holstein de Colombia
dc.description.affiliationUnespFCAV-Universidade Estadual Paulista, Jaboticabal, SP
dc.format.extent2455-2458
dc.identifierhttp://dx.doi.org/10.3168/jds.S0022-0302(04)73369-X
dc.identifier.citationJournal of Dairy Science, v. 87, n. 8, p. 2455-2458, 2004.
dc.identifier.doi10.3168/jds.S0022-0302(04)73369-X
dc.identifier.issn0022-0302
dc.identifier.lattes7445254960858159
dc.identifier.scopus2-s2.0-4243156218
dc.identifier.urihttp://hdl.handle.net/11449/67822
dc.identifier.wosWOS:000222791900016
dc.language.isoeng
dc.relation.ispartofJournal of Dairy Science
dc.relation.ispartofjcr2.749
dc.relation.ispartofsjr1,350
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCalving age
dc.subjectEnvironment
dc.subjectGenetics
dc.subjectInteraction
dc.subjectaging
dc.subjectanimal
dc.subjectBrazil
dc.subjectcattle
dc.subjectColombia
dc.subjectenvironment
dc.subjectfemale
dc.subjectfertility
dc.subjectgenetic variability
dc.subjectgenetics
dc.subjectgenotype
dc.subjectlactation
dc.subjectmathematics
dc.subjectphysiology
dc.subjectpregnancy
dc.subjectAging
dc.subjectAnimals
dc.subjectCattle
dc.subjectFemale
dc.subjectFertility
dc.subjectGenotype
dc.subjectLactation
dc.subjectMathematics
dc.subjectPregnancy
dc.subjectVariation (Genetics)
dc.subjectAnimalia
dc.subjectBos taurus
dc.subjectMammalia
dc.titleGenotype x environment interaction for age at first calving in Brazilian and Colombian Holsteinsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes7445254960858159
unesp.author.orcid0000-0003-4714-3167[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

Arquivos

Coleções

Artigos - Zootecnia - FCAV