Test-day model for milk yield of dairy buffaloes in colombia

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversity of Antioquia
dc.date.accessioned2014-05-27T11:25:56Z
dc.date.accessioned2022-10-05T18:27:43Z
dc.date.available2014-05-27T11:25:56Z
dc.date.available2022-10-05T18:27:43Z
dc.date.created2014-05-27T11:25:56Z
dc.date.issued2011-07-01
dc.identifierLivestock Research for Rural Development, v. 23, n. 7, 2011.
dc.identifier0121-3784
dc.identifierhttp://hdl.handle.net/11449/72550
dc.identifier2-s2.0-79960025459
dc.identifier2-s2.0-79960025459.pdf
dc.identifier7445254960858159
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3921601
dc.description.abstractThe test-day model is the preferred method for genetic evaluations in dairy cattle. For this study, 28372 test-day records of 1220 lactations from 1997 to 2009 were used. The (co)variance components for milk in test-day were estimated using a Uni and multiple-traits repeated animal model with the Restricted Maximum Likelihood method (REML). The Contemporary Group (herd, year, and season of parity) and the age of parity (linear and quadratic) fixed effects, and the additive genetic, permanent environmental, and residual random effects were included in the model. The heritabilities ranged between 0.06 and 0.45 during lactation. The genetic correlations were greater than 0.93. In conclusion, the test-day model is appropriate for the genetic evaluation of dairy buffaloes in Colombia.
dc.languageeng
dc.relationLivestock Research for Rural Development
dc.relation0,266
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectBuffalo
dc.subjectGenetic correlation
dc.subjectMilk yield
dc.subjectTest-day model
dc.subjectAnimalia
dc.subjectBos
dc.subjectBubalus
dc.titleTest-day model for milk yield of dairy buffaloes in colombia
dc.typeArtigo


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