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KMID : 1025520070490020177
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Journal of Animal Science and Technology
2007 Volume.49 No. 2 p.177 ~ p.182
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Genetic Relationship Between Weaning Weight and Carcass Traits in Hanwoo
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Hwang Jeong-Mi
Choi J. G.
Kim Hyeong-Cheol
Choi Yeon-Ho
Lee Chae-Young
Yang Boo-Keun
Shin Jong-Suh
Kim Jong-Bok
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Abstract
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To satisfy customers’ tastes, production of quality beef is a very important in beef cattle breeding along with calf growth, which is also an economically important issue for cow-calf producers. However there is controversy in relationship between body growth and carcass parameters at different slaughter end points(Choy et al., 2005). Splan et al.(2002) reported that selection to increase maternal or direct weaning weight would have been expected to increase carcass weight, rib eye area, and fat thickness and that selection for direct weaning weight only would be expected to slightly decrease marbling. Before we proceed selection of animals with higher carcass quality, which is an important focus in Hanwoo, studies on how growth traits may develop in response to the selection with emphases on meat quality, or vice versa, should be researched.
The objective of this study was to estimate the genetic relationships between weaning weight and carcass traits in Hanwoo.
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KEYWORD
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Weaning weight, Carcass trait, Heritability, Genetic correlation
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