关键词: 遗传分析, 遗传分析

Abstract:

In view of the abuse of antibiotics in feed additives, efficient composite probiotics would used to replace antibiotics which had became more and more important. Probiotics was a novel feed (food) additive for mankind or animals, which could improved the intestinal environment, decrease the quantity of harmful microflora and the hazardous substances in the body. In this paper, Escherichia coli was used for probiotics isolation, and then four strains were obtained. The strains were identified by morphology observation and traditional physiology biochemistry experiments, and the results showed that they were all belonging to Bacillus spp. in the work. It would made basis for the use of probiotics.