中文摘要：

选用500只体质量相近的35日龄健康肉兔,随机分成试验组和对照组.对照组饲喂基础日粮,试验组35～59日龄饲喂添加0.1％ Tu-2制剂的基础日粮,之后停止饲喂Tu-2制剂,以探究Tu-2制剂对肉兔生产性能及肠道微生物菌群的影响.结果显示：添加0.1％的Tu-2制剂后,肉兔平均日增体质量提高12.84％,料重比降低11.67％,腹泻率下降43.75％;第8～25天,试验组肉兔粪便中芽孢杆菌、双歧杆菌、乳酸菌数量分别提高34.51％,43.73％、30.89％,大肠杆菌数量降低30.56％;停喂Tu-2制剂后,试验组肉兔生产性能及粪便中菌群数量等指标又逐渐接近对照组.可见,Tu-2制剂可改善肉兔肠道生态环境,有效预防腹泻,提高饲料转化率.

英文摘要：

Five hundred 35 day sold meat rabbits of similar mass and health were selected.Meat rabbits were divided into test group and control group randomly.Meat rabbits of the control group were fed with the basic diet.The test group were supplemented with 0.1% Tu-2 preparation from 35 days old to 59 days old.Then Tu-2 preparation was stopped adding.The changeable regular of microbial flora in meat rabbit manure and growth were observed and recorded.The results showed after adding 0.1% Tu-2 preparation meat rabbits weight increased by 12.84% on the average,material weight ratio and diarrhea rate fell by 11.67% and 43.75%;average number of bacillus,bifidobacterium and lactobacillus increased by 34.51%,43.73% and 30.89% respectively,while the number of Escherichia coli decreased by 30.56% compared with the control group from eighth to fifth day.When Tu-2 preparation was stopped,the relative indexes of the test group closed to the control group gradually.Therefore,Tu-2 preparation can improve the ecological environment of meat rabbit intestinal tract and prevente diarrhea effectively and improve feed conversion rate.