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김선기,원송대,연정웅 제주대학교 농과대학 제주도축산문제연구소 1991 畜産論叢 Vol.6 No.1
40 three way crossbreed(LYXHXD) were used to investigate the effect of L. cicidopkilus, Str. faecalis(domestic products as animal probiotics) on the gain, feed efficiency, frequency of diarrhea, fecal lactobacillus and coliform bacteria for 2 months. The results were as follows; 1. ADG(Average Daily Gain) was significantly improved by the addition of L. acidophilus(p<O.l) compared to controL But, significant difference was not found in Str. faecalis treatment 2. Although significant difference was not tested in feed efficiency, there was similar to ADG. 3. Frequency of diarrhea was highly scored in early weanling pigs(0-2 weeks) of all treatments Thereafter, it was not found the diarrhea 4. Counting the fecal lactobacillus and coliform bacteria, it was not found the increase of fecal lactoba-cillus compared to control. Decrease of coliform bacteria was clear at last stage(5-8 Weeks) com-pared to early stage(0-4 weeks).