Estimation of the genetic parameters of 24-and 30-month carcass traits for sire selectionEstimation of the genetic parameters of 24-and 30-month carcass traits for sire selection
- Authors
- 김대중; 송형준; 이석현; 이중재; 진실; 조상래; 강성식; 원정일
- Issue Date
- 2021
- Publisher
- 충남대학교 농업과학연구소
- Keywords
- carcass traits; genetic parameters; Hanwoo; slaughter age
- Citation
- Korean Journal of Agricultural Science, v.48, no.3, pp 527 - 534
- Pages
- 8
- Journal Title
- Korean Journal of Agricultural Science
- Volume
- 48
- Number
- 3
- Start Page
- 527
- End Page
- 534
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/62820
- DOI
- 10.7744/kjoas.20210042
- ISSN
- 2466-2402
2466-2410
- Abstract
- This study investigated the possibility of performing selection using 30-month carcass traits by estimating the genetic parameters of 24- and 30-month carcass traits. Data used in this study were the carcass traits of 13,151 heads slaughter at the age of 24 and 30 months. As a result of the study, the heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 24 months of age were estimated to be 0.588, 0.354, 0.467 and 0.587, respectively.
The heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 30 months of age were estimated to be 0.498, 0.577, 0.505 and 0.530, respectively. The ranking correlation was 0.516 between the carcass selection indices of 24 and 30 months of age. By providing a 30-month selection index, it is possible to use semen suitable for farm profits, and more semen information can be provided to farms than previously. Furthermore, studies on a selection index based on 30-month carcass traits are needed to provide highly accurate information.
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