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http://dx.doi.org/10.5187/JAST.2004.46.2.201

Roughage Value of Deepstacked Rice Hulls-bedded Broiler Litter in Sheep  

Kwak, W.S. (Animal Science, School of Life Resource and Environmental Sciences, College of Natural Sciences, Konkuk University)
Baek, Y.H. (Animal Science, School of Life Resource and Environmental Sciences, College of Natural Sciences, Konkuk University)
Ji , K.S. (Animal Science, School of Life Resource and Environmental Sciences, College of Natural Sciences, Konkuk University)
Publication Information
Journal of Animal Science and Technology / v.46, no.2, 2004 , pp. 201-208 More about this Journal
Abstract
This study, in which sheep were used as models for beef cattle, was conducted to determine the effect of replacing 100% of rice straw with deepstacked broiler Iitter(BL) as a roughage source on total tract apparent digestibility, digestible nutrient intake, ruminal and blood parameters, and N balance of sheep. Under the conventional formulated mix-rice straw(60: 40) feeding system(control), replacement of rice straw with BL resulted in similar(P> 0.05) total tract apparent digestibilities of fiber and organic matter, similar(P> 0.05) intake of digestible NDF, ADF and organic matter, and higher(P <0.05) intake of digestible crude protein. Feeding BL instead of rice straw resulted in 10wer(P <0.05) ruminal pH, higher(P <0.05) $NH^3-N$ concentration and similar(P> 0.05) rominal volatile fatty acid percentage and blood urea concentration. In a N balance study, increased(P<0.05) N intake for the BIAed group induced higher(P <0.05) quantities(g/d) of fecal and urinary N excretion, bodily N absorption, and N retention. It was concluded that deepstacked BL fiber was comparable to rice straw fiber as a roughage source and BL protein was also favorably utilized within the body of ruminant.
Keywords
Broiler litter; Rice straw; Sheep; Feed; Digestibility; N balance;
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