Journal of Animal Breeding and Genomics (J Anim Breed Genom)
Hyoun Ju Kim1*, Shil Jin1, Jeong Il Won1, Sung-Sik Kang1, Sung Woo Kim1, Eunju Kim1, Sun Sik Jang1, Youl Chang Baek1,Sung Jin Moon1, Myung Sun Park1, Woo Hun Choi1, Seung Hwan Lee2*
1Hanwoo Research Institute, Rural Development Administration National Institute of Animal Science, Pyeongchang 25340, Korea
2Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
Correspondence to Seung Hwan Lee, E-mail: slee46@cnu.ac.kr
Volume 8, Number 3, Pages 81-88, September 2024.
Journal of Animal Breeding and Genomics 2024, 8(3), 81-88. https://doi.org/10.12972/jabng.20240304
Received on 29 July, 2024, Revised on 30 September, 2024, Accepted on 30 September, 2024, Published on 30 September, 2024.
Copyright © 2024 Korean Society of Animal Breeding and Genetics.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0).
Hanwoo is Korean native beef cattle which contains high-marbled meat. To maintain genetic diversity and preserve the breed of Hanwoo, the Hanwoo research institute of the National Institute of Animal Science (NIAS) has been conducting research on the formation of Selection line (SI) using their own sires and 300 cows for 15 years. As a results, principal component analysis (PCA) of the group using Korean proven bull semen and the SI group showed genetic differences explained by 1.39% and 1.23% variance, although complete differentiation was not achieved. However, due to differences in group size and selection intensity, the genetic improvement rate was somewhat lower. By understanding the characteristics of this herd and continuing related research to form a group with differentiated breeding objectives, it is expected that in the future, the creation of specialized herd with genetic diversity will contributed to the preservation of the Hanwoo breed.
Hanwoo, Preservation, Closed population, Genetic improvement
농촌진흥청(Rural Development Administration) 기관고유연구사업(과제번호: PJ01502803)의 지원에 의해 이루어진 것이며, 연구비 지원에 감사드립니다.
No potential conflict of interest relevant to this article is reported.
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