Journal of Animal Breeding and Genomics (J Anim Breed Genom)
Ji Yeong Kim1, Eun Ho Kim1, Ho Chan Kang1, Cheol Hyun Myung1 and Hyun Tae Lim1,2*
1Department of Animal Science, Gyeongsang National University, Jinju 52828, Korea
2Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
Correspondence to Hyun Tae Lim, E-mail: s_htim@gnu.ac.kr
Volume 8, Number 1, Pages 7-15, March 2024.
Journal of Animal Breeding and Genomics 2024, 8(1), 7-15. https://doi.org/10.12972/jabng.20240102
Received on 05 March, 2024, Revised on 26 March, 2024, Accepted on 27 March, 2024, Published on 31 March, 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).
Climate change is causing abnormal weather patterns worldwide. In Korea, local governments are characterized by various climatic conditions. Therefore, research integrating climate factors with Hanwoo is necessary. In this study, 562 Hanwoo were analyzed using Pedigree Best Linear Unbiased Prediction (PBLUP) and Genomic BLUP (GBLUP) models while considering climate factors such as temperature and humidity in the Yeongnam region. Carcass Weight (CWT) varied significantly in PBLUP depending on the model, while the heritability of Eye Muscle Area (EMA) and Back-Fat Thickness (BFT) decreased. However, the Marbling Score (MS) maintained high heritability across all models. GBLUP showed a slight decrease in the analysis model that considers breeding areas and climatic factors, yet still led to a high estimate of heritability for all traits. However, MS consistently had a heritability of 0.50 across all models. In PBLUP, the accuracy of the Estimated Breeding Value (EBV) increased by 0.15 for CWT (0.62-0.77) compared to Model 1. However, a decrease of 0.01–0.06 was observed for EMA (0.62–0.68) and BFT (0.53–0.58), while an increase of 0.01 was noted for MS (0.72–0.73). The accuracy of EBV using GBLUP was as follows: CWT (0.75-0.77), EMA (0.72-0.80), BFT (0.71-0.81), and MS (0.75). The accuracy of BFT significantly increased compared to PBLUP. For MS, it did not appear to be influenced by breeding area and climatic conditions. These results suggest the need for ongoing research on the relationship between Hanwoo carcass traits and climate effects, requiring additional test groups from various breeding areas.
Hanwoo, Carcass trait, Climate effect, Heritability, Estimated breeding value
본 연구는 농촌진흥청(Rural Development Administration) 공동연구사업(과제번호: PJ0162182021)의 지원에 의해 이루어진 것으로 연구비 지원에 감사드립니다.
No potential conflict of interest relevant to this article is reported.
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