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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.15 No.1 pp.27-31

초음파를 이용한 거세 한우의 산육성 구명과 도체육량 조기예측에 관한 연구

송영한, 조재희, 이용준
강원대학교 동물자원과학대학

Study on Meat Productivity Evaluation and Early Prediction of Carcass Yield Grade by Ultrasound in Hanwoo Steers

Yong-Joon Rhee, Young-Han Song, Jae-Hee Cho
College of Animal Resource Sciences, Kangwon National University


This study was performed to evaluate the changes of carcass traits and early prediction of meat yieldof Hanwoo steers using ultrasound. Seventy five Hanwoo steers were ultrasonically scanned at 12, 15, 18,21 and 24 months of age for meat productivity evaluation. To make early prediction of carcass yield grade,ultrasound measure for one hundred fifty seven Hanwoo steers was done at 18, 21 and 24 months of age.Ultrasonic yield grade at 18, 21 and 24 months of age were predicted by regression method. Classifyingby carcass yield grade, ultrasonic back fat thickness at 18, 21 and 24 months of age was significantlydifferent in each carcass yield grade (p<0.05). The prediction accuracy of carcass yield grade by regressionmethod was 80.2% at 18 months, 80.3% at 21 months and 87.2% at 24 months of age. From these results,ultrasound measurement might be a useful technique to predict the carcass trait and meat yield grade inHanwoo steer.