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http://dx.doi.org/10.5187/JAST.2008.50.3.363

Effects of Total Mixed Rations on Growth Performance and Carcass Charcteristics of Hanwoo Steers  

Cho, Young Moo (National Institute of Animal Science, RDA)
Kwon, Eung Gi (National Institute of Animal Science, RDA)
Chang, Sun Sik (National Institute of Animal Science, RDA)
Kim, Tae Il (National Institute of Animal Science, RDA)
Park, Byung Ki (National Institute of Animal Science, RDA)
Kang, Su Won (National Institute of Animal Science, RDA)
Paek, Bong Hyun (National Institute of Animal Science, RDA)
Publication Information
Journal of Animal Science and Technology / v.50, no.3, 2008 , pp. 363-372 More about this Journal
Abstract
To investigate the effects of total mixed ration(TMR) on growth performance and carcass characteristics of Hanwoo steers, sixty steers were randomly assigned to one of four treatment groups; separate feeding of concentrate and rice straw(control), wet TMR(TMRⅠ), dry TMR with 20%(TMRⅡ) and 40%(TMRⅢ) barley bran from 6 to 28 month of age. In growth performance, average daily gains of TMRⅡ group was the highest(0.70kg/day) but significant differences between treatments were not found(p>0.05). Average feed required for kg body weight gain of control group was 11.63kg. Those of TMRⅠ through TMRⅢ were 9.29, 10.46 and 10.71kg, respectively. Dressing percentage and retailed cut percentage were 59% and 63%, without any significant differences between treatments(p>0.05). There were no significant differences in rib-eye area, back fat thickness, meat color and fat color (p>0.05). Average marbling score was higher(p<0.05) in TMRⅠ than in control group.
Keywords
Total mixed ration; Hanwoo steer; Carcass characteristics; Economic efficacy
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Times Cited By KSCI : 5  (Citation Analysis)
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