Por favor, use este identificador para citar o enlazar este ítem: http://www.alice.cnptia.embrapa.br/alice/handle/doc/46157
Registro completo de metadatos
Campo DCValorLengua/Idioma
dc.contributor.authorMARTINS, E. N.
dc.contributor.authorENGLER, E. O.
dc.contributor.authorSAKAGUATI, E. S.
dc.contributor.authorFREITAS, A. R. de
dc.contributor.authorALENCAR, M. M. de
dc.contributor.authorNIETO, L. M.
dc.contributor.authorFALCÃO, A. J. S.
dc.date.accessioned2026-03-18T10:32:38Z-
dc.date.available2026-03-18T10:32:38Z-
dc.date.created2002-09-04
dc.date.issued2002
dc.identifier.citationIn: WORLD CONGRESS APPLIED TO LIVESCTOCK PRODUCTION, 7., 2002, Montpellier, France. Abstracs... Montpellier: INRA, 2002. p.197.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/46157-
dc.descriptionIn the genetic evaluations, the models usually assume homogeneous variance through subclasses of identified factors. However, several studies have reported heterogeneous genetic and residual variances in analyses of many animal production traits (Weigel and Gianola, 1993). Different regions, birth years, feeding systems, genetic variability within herds and production levels can have heterogeneous variance among their subclasses (Ibáñez et al., 1996; De Veer and Van Vleck, 1987). Synthetic breeds are usually formed from selection of crossbred animals. Crossbred populations in general have relatively high genetic variability. However, selection changes gene frequencies and consequently it tends to reduce the genetic variability. Furthermore, the herds have had their environment modified over time by improvement in feeding and management. Therefore, data from different generations of a single population can have heterogeneous variances. Ignoring heterogeneity of variance can reduce the efficiency of genetic evaluation procedures and consequently response to selection (Hill, 1984). Thus, the aim of this study was to evaluate the occurrence of heterogeneous variance of yearling live weight among the first six generations of Brazilian Canchim breed
dc.language.isoeng
dc.rightsopenAccess
dc.subjectVariances
dc.subjectHeterogeneous genetic
dc.subjectResidual variances
dc.subjectBrazilian Canchim breed
dc.titleBayesian analyses of heterogeneous variances among generations of brazilian Canchim beef calves.
dc.typeResumo em anais e proceedings
riaa.ainfo.id46157
riaa.ainfo.lastupdate2026-03-18
dc.contributor.institutionE. N. MARTINS, UEM; E. O. ENGLER, UEM; E. S. SAKAGUTI, UEM; ALFREDO RIBEIRO DE FREITAS, CPPSE; MAURICIO MELLO DE ALENCAR, CPPSE; L. M. NIETO, UEM; A. J. S. FALCÃO, UEM.
Aparece en las colecciones:Resumo em anais de congresso (CPPSE)

Ficheros en este ítem:
Fichero Descripción TamañoFormato 
BayesianAnalysesHereregeneous.pdf623,39 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro sencillo del ítem

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace