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Nutrient Utilization of Broiler Litter and Bakery By-product Ration in Sheep

육계분-제과부산물 발효 완전혼합사료(TMR)의 면양 체내에서의 영양소 이용성 평가

  • Kwak, W.S. (Animal Science, School of Life Resource and Environmental Sciences, College of Natural Sciences, Konkuk University) ;
  • Yoon, J.S. (Animal Science, School of Life Resource and Environmental Sciences, College of Natural Sciences, Konkuk University) ;
  • Jung, K.K. (Dept. of Animal and Life Science, College of Natural Resources, Yeungnam University)
  • 곽완섭 (건국대학교 자연과학대학 생명자원환경과학부 축산학전공) ;
  • 윤정식 (건국대학교 자연과학대학 생명자원환경과학부 축산학전공) ;
  • 정근기 (영남대학교 자연자원대학 생물자원학부 동물생명과학전공)
  • Published : 2003.08.30

Abstract

This study was conducted to determine the effect of feeding a total mixed ration(TMR) of broiler litter(BL) and bakery by-product(BB) with additional BL or rice straw incorporated at 10% of dietary DM as a roughage source on behavior pattern, nutrient intake, digestibility, digestible nutrient intake, ruminal and blood parameters, and N balance of sheep. All the treatment diets were formulated to be isoenergetic[total digestible nutrients(TDN) 66.9%]. Compared with the conventional formulated feed - rice straw feeding system(control), feeding TMR with BL(T1) or rice straw(T2) at 10% of dietary DM resulted in reduced eating, ruminating and total chewing time(P<0.05), similar DM intake, low(P<0.05) digestible DM, OM, fiber and total nutrients intake, low(P<0.05) nutrients digestibilities except EE, similar ruminal characteristics(pH, VFA concentrations and ratios, efficiency of carbohydrate fermentation, NH3-N), and favorable N digestion and retention. There were no differences in the above parameters between T1 and T2 with the exception of increased(P<0.05) eating, ruminating and total chewing time for T2. These results suggested that a TMR of BL and BB with or without rice straw may replace the conventional formulated feed and rice straw in ruminant diets successfully and furthermore feeding the TMR with rice straw made sheep behavior pattern more favorable.

Keywords

Broiler litter;Bakery by-product;Sheep;TMR;Digestibility;Ruemn;Blood;N balance

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