Estimation of genetic parameters for @entity154 of Japanese Black XXXX in Kagoshima.

@entity154 @entity121 @entity4 @entity2981 @entity1503 @entity291
UNASSIGNED: @entity291 exhibit a range of @entity154 , including @entity1503 ( @entity1503 ), @entity4 ( @entity4 ), @entity121 ( @entity121 ), @entity2981 ( @entity2981 ), trim loss (TRL) and others (OTH). These defects lower the carcass value and can result in significant economic loss to producers. We estimated the incidence, relationship with inbreeding coefficients and genetic parameters of @entity154 in Japanese Black @entity291 using 561   619 carcass records from Kagoshima, Japan during April 1988 through March 2011. The defect incidence ranged from 0.22% for TRL to 5.73% for @entity2981 . The incidence of @entity121 and @entity2981 increased from 1.21% to 6.57% and from 1.06% to 9.31%, respectively. The incidence of @entity4 peaked at 7.44% in 1999 and decreased thereafter. We observed a positive linear relationship between the defect incidence and the inbreeding coefficients in @entity121 , @entity2981 and TRL (P < 0.01). The heritabilities estimated by univariate animal model with Gibbs sampling for @entity1503 , @entity4 , @entity121 , @entity2981 and TRL were 0.24, 0.06, 0.18, 0.05 and 0.02, respectively. The contribution of farm variance to phenotypic variance was negligible (0.01 to 0.04). Significant genetic correlations of TRL were estimated with @entity121 (0.63) and @entity2981 (0.63). Our results suggest that genetic factors contribute to the incidence of @entity1503 and @entity121 .
