Journal of Animal Breeding and Genomics (J Anim Breed Genom)
Gwang Hyeon Lee1,2,3,4, Hong Sik Kong1,2,3,4*
1Department of Applied Biotechnology, The Graduate School of Hankyong National University, Anseong 17579, Korea
2Genomic Informatics Center, Hankyong National University, Anseong 17579, Korea
3Gyeonggi Regional Research Center, Hankyong National University, Anseong 17579, Korea
4Hankyong and Genetics, Anseong 17579, Korea
Correspondence to Hong Sik Kong, E-mail: Kebinkhs@hknu.ac.kr
Volume 8, Number 4, Pages 207-215, December 2024.
Journal of Animal Breeding and Genomics 2024, 8(4), 207-215. https://doi.org/10.12972/jabng.20240413
Received on 09 December, 2024, Revised on 20 December, 2024, Accepted on 24 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).
The goal of Hanwoo breeding is to produce large quantities of high-quality beef at a low cost. Breeding research has led to an increase of more than 100 kg in the average carcass weight of Hanwoo cattle. However, carcass weight includes bone and inedible fat, which differ from the percentage of lean meat. Enhancing the percentage of lean meat is essential for improving meat efficiency. Therefore, this study aimed to enhance the productivity of Hanwoo cattle by analyzing 1,905 Hanwoo cattle. This study investigated the correlations between carcass traits (carcass weight, eye muscle area, back fat thickness, and marbling score) and lean meat traits (weight and percentage). Additionally, genetic parameters for lean meat weight and percentage were estimated using the Best Linear Unbiased Prediction (BLUP) method. Based on the estimated genetic parameters, breeding value analysis was conducted. Furthermore, accuracy and correlation analyses between the estimated breeding values and the phenotypic data were performed. The accuracies of the estimated breeding values for carcass traits such as carcass weight, eye muscle area, backfat thickness, and marbling score, were 0.380, 0.373, 0.338, and 0.366, respectively; whereas for lean meat traits, namely weight and percentage, the accuracies were 0.381 and 0.373, respectively. Although the accuracy was relatively low, establishing a larger reference population is expected to enable more precise genetic evaluation. Based on the results of this study, improving lean meat traits is expected to significantly enhance Hanwoo beef productivity.
Hanwoo, SNP chip, Lean meat trait, Genetic parameter, Breeding value
This study is based on the author’s Ph. D. dissertation (Lee, 2024).
Choy YH, Choi SB, Jeon GJ, Kim HC, Chung HJ, Lee JM, Park BY and Lee SH. 2010. Prediction of retail beef yield using parameters based on Korean beef carcass grading standards. Food Science of Animal Resources30(6):905-909.
[DOI]
Falconer DS and Mackay TFC. 1996. Introduction to quantitative genetics. England: Longman Group Limited. Essex. UK.
Jung KK, Kim DG, Sung SK, Choi CB, Kim SG, Kim DY, Choi BJ and Yun YT. 1996. Effect of Castration on the Carcass Grade of Hanwoo and Holstein. JAST 38(3):249-260.
Kim JY, Ba HV, Seong PN, Kim YS, Kang SM, Cho SH, Moon SS, Kang SJ, Park BY and Seo HW. 2018. Carcass Characteristics and Primal Cuts Yields by Live Weight of Hanwoo Steers in Gyeongbuk Province. J. Agric. Life Sci. 52(2):151-167.
[DOI]
Kim SJ, Choi TJ, Son JH, Lee DM, Lee JJ, Lee JG, Lim HT and Koo YM. 2022. Estimation of Genomic Estimated Breeding Value (GEBV) and Reliability for Hanwoo Carcass Traits using ssGBLUP. Journal of Animal Breeding and Genomics 6(3):57-72.
[DOI]
Koh DY. 2013. Genetic parameter estimation of carcass traits and Retailed cuts percentage in Hanwoo steers. Master’s thesis, Kangwon National University, Korea.
Koh DY, Lee JK, Won SG, Lee CY and Kim JB. 2014. Genetic relationships of carcass traits with retail cut productivity of Hanwoo cattle. Asian-Australasian Journal of Animal Sciences 27(10):1387.
[DOI][PubMed][PMC]
Lee DJ, Lee SH and Yoon DH. 2022. A comparative study of estimated breeding values with Hanwoo cow using genetic evaluation models. Journal of Animal Breeding and Genomics 6(4):241-252.
[DOI]
Lee GH. 2024. Genome-Wide Association Study Analysis and Functional Annotation Research Using Hanwoo Genome Information for Major Primal Cut Traits. Doctoral dissertation, Hankyong National University, Korea.
Lee JG, Lee SS, Cho KH, Cho CI, Choy YH, Choi JG, Park BH, Na CS and Choi TJ. 2013. Correlation Analyses on Body Size Traits, Carcass Traits and Primal Cuts in Hanwoo Steers. JAST 55(5):351-358.
[DOI]
Lee JI. 2023. The Prediction of Primal Cuts Yield by Market Weight, Age, and Yield Grade of Hanwoo Steer. Doctoral dissertation, Chungbuk National University, Korea.
Lee JY, Kim JB, Shin JS, Yang BK and Hong BJ. 1997. Effects of Sex, Carcass Weight and Carcass Traits on Retailed Cuts Percentage of Hanwoo. JAST 39(2):155-163.
Lee JY, Lee JK and Kim JB. 2016. Relationship of Major Carcass Grading Traits with the Related Retail Cut Productivity Traits in Hanwoo Steers. J. Agric. Life Sci. 50(4):99-111.
[DOI]
Seo HW, Ba HV, Kim YS, Kang SM, Seol KH, Seong PN, Moon SS, Kim JH and Cho SH. 2019. Carcass Characteristics and Primal Cuts Yields of Hanwoo as Affected by Sex. J. Agric. Life Sci. 53(4):77-92.
[DOI]
Sun DW. 2021. A Study on the Estimation of Genetic Parameters on Carcass Traits in Gyeongnam Hanwoo. Journal of Animal Breeding and Genomics 5(3):85-90.
[DOI]
Yun YT, Kim DG and Sung SK. 1994. A study on the major carcass traits of the Hanwoo (Korean native cattle) and holstein by the various carcass weight classes. JAST 36(2):175-183.