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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.35 No.2 pp.56-64
DOI : https://doi.org/10.12718/AARS.2024.35.2.56

Correlation Analysis of Carcass Characteristics Factors According to Concentrate Diet and TMR Diet Feeding in Hanwoo Steers

Kyung Hoon Lee1#, Jae Jung Ha2#, Dae Hyun Kim3, Mi Yeon Son4,*, Jun Koo Yi5,6*
1Graduate Student, 5Professor, School of Animal Life Convergence Science, Hankyong National University, Ansung 17579, Korea
2Researcher, Gyeongsangbuk-Do Livestock Research Institute, Yeongju 36052, Korea
3Professor, Department of Animal Science, Chonnam National University, Gwangju 61186, Korea
4Researcher, Department of Agricultural Economics, Purdue University, West Lafayette, IN 47907, USA
6Professor, Gyeonggi Regional Research Center, Hankyong National University, Anseong 17579, Korea
#These authors contributed equally to this work as co-first authors.
*These authors contributed equally to this work as co-correspond authors.
*Corresponding Author: Mi Yeon Son, Department of Agricultural Economics, Purdue University, West Lafayette, IN 47907, USA. Tel: +1-405-332-6222, E-mail: son89@purdue.edu, Jun Koo Yi, School of Animal Life Convergence Science, Hankyong National
University, Ansung 17579, Korea. Tel: +82-31-670-5092, E-mail: junkoo@hknu.ac.kr

Abstract

This study analyzed the correlation between carcass traits of Hanwoo steers and feeding methods (concentrate feed and total mixed ration for ruminants). The results indicated that in the feeding system using concentrate feed, the variation in carcass weight and marbling score among individual animals within farms tended to affect the average carcass sale price, with both showing negative effects (p=0.057, p=0.053). The standardized regression coefficients were used to compare the influence of each variable, revealing that the coefficients for carcass weight variation and marbling score variation were –0.38 and –0.30, respectively, indicating a greater influence of carcass weight variation. Therefore, reducing the variations in carcass weight and marbling score among steers in farms using concentrate feed is likely to increase the average carcass sale price. In the case of farms using total mixed ration (TMR) for ruminants, the variation in marbling score among individual animals significantly affected the average carcass sale price, showing a negative effect (p=0.002). Thus, reducing the variation in marbling score among steers in TMR farms is likely to increase the average carcass sale price. In summary, the coefficient of variation of marbling score was found to have a significant impact on the average carcass sale price of the farm. In farms using concentrate feed, the variations in both carcass weight and marbling score tended to affect the average carcass sale price (0.05

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