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KMID : 1025520000420020181
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Journal of Animal Science and Technology
2000 Volume.42 No. 2 p.181 ~ p.188
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Effects of Feeding Whole Crop Barley Silage on Growth Performance , Feed Efficiency and Meat Quality in Hanwoo Steers
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홍성구/Hong, S. K.
조원모/이종문/윤상기/조영무/정의수/Cho, W. M./Lee, J. M./Yoon, S. K./Cho, Y. M./Jeong, E. S.
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Abstract
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This study was conducted to investigate the effect of feeding whole crop barley silage(WBC) on growth performance, feed efficiency and meat quality in Hanwoo steers. Forty steers were allocated to control(C) which was fed rice straw overall periods and four treatment groups(T₁- T₄) which were fed both WBC and rice straw ad libitum according to the treatments and allowed free access to water. Concentrates were fed at 1.5% level of live body weight during 4-12 months of age, at 1.8% level of live body weight during 13-18 months and ad libitum after 19 months.
The results obtained were as follows : The daily gain of control (C) was lower (0.7㎏) than that of treatment group (0.8㎏) and the concentrate intake per ㎏ gain during experimental periods in control (C) was higher than those of treatments, also dry matter basis obtained the same results. Cold carcass weight in Control was lower than those of other treatments except T₄, especially was lower than T₂(p $lt; .05) but fat percentages in T₂was higher. Beef quality and yield traits of steers in T₂was higher than those of treatments. Therefore WBC as roughage has effect on steer feeding system for improving meat grade and growth.
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