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생효모 배양물이 젖소 비육우의 성장능력 및 육생산성에 미치는 효과
강우성(W . S . Kang),이상철(S . C . Lee),윤상기(S . K . Yoon),정의수(E . S . Chung),이기종(K . J . Lee) 한국축산학회 1992 한국축산학회지 Vol.34 No.2
The effect of live yeast culture in diets of Holstein dairy bulls was examined in feeding and digestibility trials. Twenty heads weighing about 120㎏ were allocated to control, 0.25% live yeast culture, 0.1% probiotics A and 0.15% probiotics B complex(probiotics+enzyme+yeast culture). In growing period, daily gain was not significantly affected by treatments, but DM intake per ㎏ wt. gain was highest (P$lt;0.05) in live yeast culture group among treatments. For both daily gain and nutrient (DM, CP, TDN) intake per ㎏ wt. gain, live yeast culture group was higher (P$lt;0.05) than control for fattening Ⅰ period, and also was higher (P$lt;0.05) than control and probiotics A group for fattening Ⅱ period. Difference between probiotics A and probiotics B complex was not significant in growth performance for each period. Live yeast culture appeared to shorten the day required to marketing weight compared to other additives. Carcass characteristics except kidney fat were not different among treatments. Profit and net income were improved by 5% and 15% with the inclusion of live yeast culture, respectively. CO₂ and H₂S production through feces were remarkably (P$lt;0.05) affected by the additives. Slight increases in digestibility were observed by the additives for DM, CP and CF.