屎肠球菌T013复合制剂饲喂生长猪的效果研究

Research on the Effect of Enterococcus faecium T013Complex Preparation Fed the Growing Pigs

试验旨在研究日粮中添加屎肠球菌T013复合制剂对生长猪的生产性能、粪便微生物、环境指标及血清指标的影响。选用体重在(31.75±3.78)kg的杜×长×大三元杂交仔猪120头,随机分成对照组(基础日粮)、试验Ⅰ组(基础日粮中添加3%屎肠球菌T013复合制剂)和试验Ⅱ组(基础日粮中添加6%屎肠球菌T013复合制剂),每组4个重复,每个重复10头猪,试验期为28d。结果表明,屎肠球菌T013复合制剂能增加生长猪日采食量和日增重,降低料重比,但差异不显著(P>0.05),并且能显著减少腹泻率(P<0.05);试验Ⅱ组能够极显著降低粪便pH和减少大肠杆菌数量,增加乳酸菌数量(P<0.01);试验组均能够极显著的减少NH3的排放(P<0.01);试验Ⅱ组能够显著增加血清IgG含量和减少尿素氮含量(P<0.05),对总蛋白、白蛋白、白蛋白/球蛋白和葡萄糖的含量无显著影响(P>0.05)。因此,屎肠球菌T013复合制剂能够降低生长猪的腹泻率,改善肠道微生态环境,减少NH3的排放,增强猪的免疫能力。

The experiment was conducted to study the effects of Enterococcusfaecium T013 complex preparation of the di- ets on the growth performance, fecal microbial, environmental indicators and serum indicators in growing pigs. 120 crossbred （Duroc × Landrace× Large White） weaned piglets with average body weight of （31.75 ± 3.78）kg were randomly assigned to three dietary treatments ： the control（no supplementation）, test Ⅰ （3 % supplementation）, test Ⅱ （6 % supplementation）） with four replicates per treatment and ten pigs per replicate. The feeding trial lasted for 28 days. The results showed that Enterococ cusfaecium T013 complex preparation could increase the daily feed intake and average dairy gain, lower feed conversion, but the difference was not significant（P〈0.05）, and could significantly reduce diarrhea rates（P〈0.05）, experimental group Ⅱ could significantly reduce fecal pH and the number of Escherichia coli, increase the number of lactic acid bacteria（P〈0.01）, experimental groups could significantly reduce emission of NHa （P〈0.01）, experimental group H could significantly increase the serum IgG levels and reduce blood urea nitrogen levels （P〈0.05） ;TP, ALB, A/G and GLU showed not effect significantly （P〉0.05）. Therefore, Enterococcus faecium T013 complex preparation could reduce diarrhea of the growing pigs,improve the intestinal microbial environment and reduce emissions of NH3, and enhance immunity of pigs.