Czech J. Anim. Sci., 2024, 69(6):211-218 | DOI: 10.17221/57/2024-CJAS

Relationship between rib fat thickness and carcass price among different carcass weight groups in Korean native cattleOriginal Paper

Eunjeong Jeon ORCID...1, Sangbuem Cho2, Myungsun Park3, Sung-Il Ahn4, Junior Isaac Celestin Poaty Ditengou2, Ki-Beom Kim5, Sung-Sub Shin5, Nag-Jin Choi ORCID...2
1 Department of Animal Science, Michigan State University, East Lansing, Michigan, USA
2 Department of Animal Science, Jeonbuk National University, Jeonju, Republic of Korea
3 Hanwoo Research Institute, National Institute of Animal Science, Pyeongchang, Republic of Korea
4 Department of Food Regulatory Science, Korea University, Sejong, Republic of Korea
5 Korea Institute for Animal Products Quality Evaluation, Sejong, Republic of Korea

The study assessed the relationship between rib fat thickness and carcass price among different carcass weight groups in Korean native cattle (Hanwoo), taking into account changes in the beef grading system. Data from 8 926 Hanwoo steers, with an average age of 30.6 ± 1.88 months and slaughtered between 2017 and 2019, were analysed. The variables considered included rib fat thickness, carcass weight, eye muscle area, marbling score, and carcass price. Steers were categorised into eight carcass weight groups ranging from 250 kg to 650 kg in the original system, rib fat thickness consistently had a negative impact on carcass price, with partial coefficients of rib fat thickness on carcass price ranging from –1.96 to –46.5 depending on the carcass weight groups. Conversely, in the revised system, the impact of rib fat thickness varied from negative to positive, turning positive at the 450 kg carcass weight group. These findings may guide decision-making in beef cattle production and feeding strategies under the revised grading system.

Keywords: carcass price; carcass trait; Hanwoo steers; partial regression

Received: April 18, 2024; Accepted: June 7, 2024; Published: June 28, 2024  Show citation

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Jeon E, Cho S, Park M, Ahn S, Poaty Ditengou JIC, Ki-Beom K, et al.. Relationship between rib fat thickness and carcass price among different carcass weight groups in Korean native cattle. Czech J. Anim. Sci. 2024;69(6):211-218. doi: 10.17221/57/2024-CJAS.
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