Genetic Parameter for Carcass Trait in Betong Chicken
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Abstract
Betong chicken is a famous native chicken in the southern part of Thailand because of their preferred meat and skin quality. The breeding schemes of Betong chicken for carcass traits are necessary to know genetic parameter of those traits. This study aimed to estimate genetic parameter for carcass traits in Betong chicken. The data were collected from 414 progeny and 722 birds were obtained from pedigree data. Variance and covariance components were using the Restricted maximum likelihood (REML) algorithm, and a multiple trait animal model was employed in this study. The results showed that the estimates of heritability for weight at 18 weeks of age, hot carcass weight (remove entrails), pectoralis major weight, pectoralis minor weight, drumstick weight, thigh weight, and wing weight were 0.40, 0.44, 0.33, 0.25, 0.49, 0.39 and 0.39, respectively. The genetic correlations of weight at 18 weeks of age, hot carcass weight, drumstick weight, thigh weight and wing weight were high and positive (rg = 0.74 to 0.98). While the genetic correlation between pectoralis minor weight and weight at 18 weeks of age, cold carcass weight, drumstick weight, thigh weight, and wing weight were moderate and positive (rg = 0.45 to 0.61). This study showed carcass traits could be improved by selection for all traits.
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการเผยแพร่ในวารสารวิทยาศาสตร์และเทคโนโลยี มรย. นี้ ถือเป็นลิขสิทธิ์ของวารสารวิทยาศาสตร์และเทคโนโลยี มรย. หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือกระทำการใดๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษรจากวารสารวิทยาศาสตร์และเทคโนโลยี มรย. ก่อนเท่านั้น
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