Non-additive genetic effects on weights and performance of a Brazilian Bos taurus x Bos indicus beef composite
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
01/01/2008
|
Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The aim of the present study was to evaluate the heterosis effects on weaning weight at 205 days (WW, N = 146,464), yearling weight at 390 days (YW, N = 69,315) and weight gain from weaning to yearling (WG, N = 59,307) in composite beef cattle. The fixed models were: RM, which included contemporary groups, class of age of dam, outcrossing percentages for direct and maternal effects, and additive direct and maternal ( AM) breed effects; R, RM model, minus AM breed effects, and H, RM model, minus additive breed effects. The estimates for W205 were in general positive (P < 0.01). The R and H models resulted in similar estimates, but they were very different from the ones estimated by the RM model. For W390, the R and H models resulted in general positive estimates (P < 0.05). For WG, the RM model resulted in general significant heterosis effects (P < 0.05). It can be concluded that the RM model seems to supply estimates of better quality (P < 0.01). |
Formato |
1156-1163 |
Identificador |
http://dx.doi.org/10.4238/vol7-4gmr501 Genetics and Molecular Research. Ribeirao Preto: Funpec-editora, v. 7, n. 4, p. 1156-1163, 2008. 1676-5680 http://hdl.handle.net/11449/14118 10.4238/vol7-4gmr501 WOS:000267218200002 WOS000267218200002.pdf |
Idioma(s) |
eng |
Publicador |
Funpec-editora |
Relação |
Genetics and Molecular Research |
Direitos |
openAccess |
Palavras-Chave | #Beef cattle #Crossbreeding #Heterosis #Performance |
Tipo |
info:eu-repo/semantics/article |