Journal of Animal Breeding and Genomics (J Anim Breed Genom)
Taejeong Choi1, ChangGwon Dang2, Gyeonglim Ryu1, Dusan Kim1, Hyeongwook Baik2, Chanhyeok Park3, Yangmo Koo3, Sangchul Park3, Jihwan Lee1*
1Dairy Science division, National Institute of Animal Science, RDA, Cheonan 31000, Korea
2DAnimal Breeding and Genetics Division, National Institute of Animal Science, RDA, Cheonan 31000, Korea
3Dairy Cattle Department, Korea Animal Improvement Association, Seoul 06668, Korea
Correspondence to Jihwan Lee, E-mail: leejh6730@korea.kr
Volume 8, Number 4, Pages 127-133, December 2024.
Journal of Animal Breeding and Genomics 2024, 8(4), 127-133. https://doi.org/10.12972/jabng.20240405
Received on 11 October, 2024, Revised on 16 December, 2024, Accepted on 16 December, 2024, Published on 31 December, 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).
This study was conducted to analyze the pedigree information of the Korean Jersey dairy cattle breed and to determine how the inbreeding coefficient is changing. A total of 3,624 pedigree data for 976 Jersey cows were used for the analysis, and the pedigree completeness index (PCI) and inbreeding coefficient by birth year were calculated and compared. As a result of the PCI analysis, PCI1, PCI3, and PCI5 were all over 90%, confirming that the pedigree information was well managed. However, the inbreeding coefficient analysis results confirmed that the inbreeding coefficient exceeded 5% after 2020 and increased by 0.2% every year. In particular, after 2020, the proportion of individuals born through embryo transfer and artificial insemination using domestically produced embryos increased. The decrease in the number of individuals used as sire compared to the number of mating heads at that time was found to be one of the reasons for the increase in the inbreeding coefficient of the Jersey breed. In order to develop the sustainable Jersey breed industry, it is necessary to continuously manage pedigree and implement design mating program.
Jersey, pedigree, inbreeding coefficient
본 성과물(논문)은 농촌진흥청 연구사업(과제번호: PJ015006)의 지원에 의해 이루어진 것임.
No potential conflict of interest relevant to this article is reported.
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