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Asian-Australas J Anim Sci > Volume 15(11); 2002 > Article
Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2002;15(11): 1523-1526.
DOI: https://doi.org/10.5713/ajas.2002.1523    Published online January 1, 2002.
Estimation of Genetic and Environmental Parameters of Carcass Traits in Hanwoo (Korean Native Cattle) Populations
D. H. Baik, M. A. Hoque, H. S. Choe
Abstract
Genetic parameters of carcass weight (CWT), dressing percent (DP), cook loss (CL), eye muscle area (EMA), back fat thickness (BFT), and meat tenderness in terms of mastication (MAS), shear force (SFR) and penetration (PEN) in Korean native cattle were estimated in this study. Effects of sire, location and their interaction on these traits were also evaluated. Sire effects were found to be significant on all the traits studied except for PEN. The CWT and DP were also significantly affected both by location (p<0.01) and by interaction effect between sire location (p<0.05). The EMA was significantly (p<0.05) affected by location but not by interaction effect between sire location. All the traits were positively correlated (rg and rp) with each other except between CL and meat tenderness (negatively correlated). Moderate to high genetic correlations between CWT and other important traits were obtained; indicating that selection for CWT would lead to improve carcass quality. Heritability estimates were 0.64, 0.52, 0.37, 0.25, 0.19 and 0.18 for MAS, SFR, CWT, PEN, DP and EMA, respectively
Keywords: Genetic Parameters; Dressing Percent; Tenderness; Cook Loss; Back Fat; Eye Muscle Area


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