本研究利用稀释滴种的方法，对健康成年家兔回肠及结肠中消化球菌、韦荣氏球菌、梭状芽胞杆菌、优杆菌、双歧杆菌、乳杆菌、肠球菌、酵母菌和肠杆菌等１０种正常微生物群进行了计数分析，并获得其微生态数值，结果显示：结肠中微生物群的总体平均菌数显著高于小肠（Ｐ＜０．０１）；同一菌种在结肠内容物中的在有数量多于回肠；结肠中韦荣氏球菌、肠杆菌为优势菌群；回肠中双歧杆菌、酵母菌为优势菌群。 In this study, the use of diluted droplet method for healthy adult rabbits ileum and colon peanut cocci, Veillonella, Clostridium, gifted bacteria, bifidobacteria, lactobacilli, enterococci, yeasts and Enterobacteriaceae Ten normal microbial populations were counted and analyzed, and their microecological values ​​were obtained. The results showed that the average number of bacteria in the colon was significantly higher than that in the small intestine (P <0.01). The same species in the colon In the number of more than the ileum; Vertelia coli colon, Enterobacteriaceae dominant bacteria; ileum Bifidobacterium, yeast is the dominant flora.