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Relation and estimation of heritabilities for body weight and body measurements of korean cattle hanwoo



Relation and estimation of heritabilities for body weight and body measurements of korean cattle hanwoo



Korean Journal of Animal Science 27(11): 691-695



This study was carried out to estimate the heritabilities for body weights and body measurements and to analysis the relation among body weight and body measurements of female Korea Native Beef Cattle (HANWOO) at birth, 3, 6, 12, 18, 24 and 32 months of age. The data used for this study consisted of 3051 heads of registered female cattle (HANWOO) which were collected in the 8 provinces from 1979 through 1985 by the KAIA and NLCF. When the cost and labor in the measurement of the body were considered, the effective stepwise regression model of the body measurements on the body weight by the maximum R2 improvement was the Model 6 including chest girth, rump width, rump height, thurls width, withers height and body length. The determinant coefficient (R2) of the Model 6 was 0.91. The heritabilities of the body weights at birth, 3, 6, 12, 18, 24 and 32 months of age were 0.20, 0.50, 0.48, 0.47, 0.22, 0.89 and 0.77, respectively. The ranges of the heritabilities on body measurements of withers height, rump height, body length, chest depth, chest width, rump length, rump width, thurls width, chest girth, and shank circumference at birth through 32 months of age were 0.05-086, 0.41-1.32, 0.20-1.05, 0.28-0.84, 0.10-0.90, 0.18-0.92, 0.20-0.63, 0.12-0.85, 0.22-0.92 and 0.09-0.91, respectively.

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