|
|
| Cavalcante Neto,Aderbal; Lui,Jeffrey Frederico; Sarmento,José Lindenberg Rocha; Ribeiro,Maria Norma; Monteiro,José Mauro Costa; Fonseca,Carlos; Tonhati,Humberto. |
| The main objective of this study was to evaluate the importance of including maternal genetic, common litter environmental and permanent environmental effects in estimation models of variance components for the farrowing interval trait in swine. Data consisting of 1,013 farrowing intervals of Dalland (C-40) sows recorded in two herds were analyzed. Variance components were obtained by the derivative-free restricted maximum likelihood method. Eight models were tested which contained the fixed effects(contemporary group and covariables) and the direct genetic additive and residual effects, and varied regarding the inclusion of the maternal genetic, common litter environmental, and/or permanent environmental random effects. The likelihood-ratio test indicated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Common litter; Maternal effect; Permanent environment; Heritability; Repeatability; Swine. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100009 |
| |
