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dc.contributor.authorCANAZA-CAYO, A. W.pt_BR
dc.contributor.authorSILVA, M. V. G. B.pt_BR
dc.contributor.authorCOBUCI, J. A.pt_BR
dc.contributor.authorMARTINS, M. F.pt_BR
dc.contributor.authorLOPES, P. S.pt_BR
dc.date.accessioned2016-09-20T11:11:11Zpt_BR
dc.date.available2016-09-20T11:11:11Zpt_BR
dc.date.created2016-09-20pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationGenetics and Molecular Research, v. 15, n. 2, gmr.15027768, 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1053168pt_BR
dc.descriptionThe objective of this study was to evaluate the effects of inclusion or non-inclusion of short lactations and cow (CGG) and/or dam (DGG) genetic group on the genetic evaluation of 305-day milk yield (MY305), age at first calving (AFC), and first calving interval (FCI) of Girolando cows. Covariance components were estimated by the restricted maximum likelihood method in an animal model of single trait analyses. The heritability estimates for MY305, AFC, and FCI ranged from 0.23 to 0.29, 0.40 to 0.44, and 0.13 to 0.14, respectively, when short lactations were not included, and from 0.23 to 0.28, 0.39 to 0.43, and 0.13 to 0.14, respectively, when short lactations were included. The inclusion of short lactations caused little variation in the variance components and heritability estimates of traits, but their non-inclusion resulted in the re-ranking of animals. Models with CGG or DGG fixed effects had higher heritability estimates for all traits compared with models that consider these two effects simultaneously. We recommend using the model with fixed effects of CGG and inclusion of short lactations for the genetic evaluation of Girolando cattle.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectGenetic grouppt_BR
dc.subjectShort lactationpt_BR
dc.subjectVariance componentspt_BR
dc.titleEffect of inclusion or non-inclusion of short lactations and cow and/or dam genetic group on genetic evaluation of Girolando dairy cattle.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-02-23T11:11:11Zpt_BR
dc.subject.nalthesaurusGirolandopt_BR
dc.subject.nalthesaurusheritabilitypt_BR
riaa.ainfo.id1053168pt_BR
riaa.ainfo.lastupdate2017-02-23pt_BR
dc.identifier.doihttp://dx.doi.org/10.4238/gmr.15027768eng
dc.contributor.institutionALI WILLIAM CANAZA-CAYO, UNAP, Peru; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; JAIME ARAUJO COBUCI, UFRGS; MARTA FONSECA MARTINS, CNPGL; PAULO SÁVIO LOPES, UFV.pt_BR
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