- Volume 18 Issue 2
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Effects of Substituting Concentrates with Dried Leftover Food on Growth and Carcass Characteristics of Hanwoo Steers
- Paek, B.H. (National Livestock Research Institute, RDA) ;
- Kang, S.W. (National Livestock Research Institute, RDA) ;
- Cho, Y.M. (National Livestock Research Institute, RDA) ;
- Cho, W.M. (National Livestock Research Institute, RDA) ;
- Yang, C.J. (Department of Animal Science and Technology, Sunchon National University) ;
- Yun, S.G. (National Livestock Research Institute, RDA)
- Received : 2003.09.19
- Accepted : 2004.06.16
- Published : 2005.02.01
This study was conducted to determine the optimum substitution level of dried leftover food (DLF) in formula feed for Hanwoo (Korean Native Cattle) steers. A total of forty growing steers were assigned to 5 treatments based on substitution level of DLF (at 0, 25, 50, 75 and 100% level of formula feed). The experiment was carried out with growing steers from 6 months of age to 24 months of age. Average daily gain (ADG) was not affected by DLF substitution level up to 75% of formula feed. However ADG decreased at 100% substitution level. Daily feed intakes were similar among treatments but the amount of feed per 1 kg gain increased with increasing substitution level of DLF. Dressing percentage was around 62% in all treatments without any significant differences. Proportion of quality beef higher than grade 1 was the greatest from animals fed 25% substitution level of DLF. Economic efficiency for Hanwoo steer operator was the highest with 50% substitution level of DLF.
Hanwoo;Dried Leftover Food;Growth Performance;Feed Intake;Carcass Characteristics
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