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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.18.0753    [Accepted] Published online January 4, 2019.
Effects of dietary levels of tapioca residue on growth performance and carcass characteristics in Hanwoo steers
Byung Ki Park1, Dong Kyo Lee1, Jun Sang Ahn2, Joong Kook Park1, Min Ji Kim3, Gi Hwal Son3, Jong Suh Shin3,* 
1Nonghyup Feed Co., LTD, Seoul 05398, Korea
2Hanwoo Research Institute, National Institute of Animal Science, RDA, Pyeongchang 25340, Korea
3College of Animal Life Sciences, Kangwon National University, Chuncheon 24341, Korea
Correspondence:  Jong Suh Shin, Tel: +82-01077502424, Fax: +82-332508697, Email: jsshin@kangwon.ac.kr
Received: 8 October 2018   • Revised: 1 November 2018   • Accepted: 8 October 2018
Abstract
Objective: This study was conducted to investigate the effects of dietary levels of tapioca residue on growth performance, carcass characteristics, and meat composition in Hanwoo steers.

Methods

Twenty-eight steers were randomly assigned to one of four dietary groups; T0 (0% tapioca residue), T6.7 (6.7% tapioca residue), T9 (9% tapioca residue), and T12 (12% tapioca residue).

Results

Supplementation with tapioca residue had no effect on overall growth performance. The concentration of plasma total cholesterol was higher in T6.7 than in other treatments (p < 0.05). Dietary levels of tapioca residue did not affect carcass yield or the quality traits of Hanwoo steers. The lightness, redness, and yellowness of the longissimus muscle of Hanwoo steers were higher in T6.7 than in other treatments (p < 0.05). Cohesiveness, gumminess, chewiness, and resilience were lower in T6.7 than in other treatments (p < 0.05).
Conclusion
The results of the present study indicate that supplementation with tapioca residue does not exert any negative effects on growth performance, carcass characteristics, and meat composition in Hanwoo steers. However, as the dietary level of tapioca residue increased, the intake of concentrate intake decreased, and tapioca supplementation greater than 6.7% did not substantially improved the marbling score.
Keywords: Blood Metabolite; Growth Performance; Hanwoo Steers; Meat Composition; Tapioca Residue


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