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Estimation of genetic parameters using real-time ultrasound measurements in Hanwoo  

Lee, Ji-Hong (Gyeongbuk Livestock Research Institute)
Yeo, Jung-Sou (School of Biotechnology, Yeungnam University)
Publication Information
Journal of the Korean Data and Information Science Society / v.22, no.6, 2011 , pp. 1145-1152 More about this Journal
Abstract
This study was conducted to estimate genetic effects on economically important traits for genetic improvement in Hanwoo by using the real-time ultrasound measurements for longissimus dorsi muscle area (LMA), backfat thickness (BFT), and marbling score (Marb). The phenotypic data were obtained from 1,648 pedigreed cows, and general linear models were applied to test the effects of age, region, and body condition socre. The cows between 50 and 60 months of age had the greatest scores for LMA and BFT, and Marb (P<0.05). The cows in region C had the greatest scores for body condition socre, LMA and BFT, while in region J Marb was the lowest (P<0.05). There was positive relation with LMA, BFT, and Marb according to increase body condition socre. Heritabilities for LMA, BFT, and Marb were estimated as 0.136, 0.351, and 0.236, respectively. These results would provide primary information for the efficient implementation of genetic improvement schemes in Hanwoo.
Keywords
Genetic parameters; heritability; real-time ultrasound;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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