屎肠球菌T013复合制剂在断奶仔猪生产中的应用研究

目的]为屎肠球菌T013复合制剂在猪生产中的应用奠定基础。方法]将90头杜×长×大杂交断奶仔猪随机分为3组:对照组(不添加)、试验Ⅰ组(添加3%屎肠球菌T013复合制剂)、试验Ⅱ组(添加6%屎肠球菌T013复合制剂)。研究不同添加量的屎肠球菌T013复合制剂对断奶仔猪生产性能、表观消化率、粪便微生物、血清指标的影响。结果]添加3%和6%屎肠球菌T013复合制剂均能提高断奶仔猪的日采食量,降低料重比,但差异均不显著(P0.05)。添加6%屎肠球菌T013复合制剂能显著提高仔猪日增重、减少腹泻率(P0.05)。添加6%屎肠球菌T013复合制剂后断奶仔猪粗蛋白质和钙的表观消化率显著提高(P0.05),2个试验组粗脂肪、粗纤维等饲料养分的表观消化率均有所提高,但差异均不显著(P0.05)。与对照组相比,试验Ⅱ组仔猪粪样的pH极显著降低,大肠杆菌数量极显著减少和乳酸菌的数量极显著增加(P0.01)。试验Ⅱ组仔猪血清尿素氮的含量极显著低于对照组(P0.01),谷草转氨酶和谷丙转氨酶显著高于对照组(P0.05),添加屎肠球菌T013复合制剂对仔猪血清IgG、总蛋白、白蛋白和葡萄糖的含量无显著影响(P0.05)。结论]屎肠球菌T013复合制剂能改善断奶仔猪的生长性能,提高粗蛋白质的表观消化率,调节肠道微生态环境,促进断奶仔猪健康生长。

Research on the Application of Enterococcus faecium T013 Complex Preparation in the Production of Weaned Piglets

Objective] The research aimed to lay the foundation for the application of Enterococcus faecium T013 complex preparation in the porcine production.Method] 90 hybrid weaned piglets of Duroc×Landrace×Yorkshire were randomly divided into three groups:control group(no supplementation),test group Ⅰ(supplementing 3% E.faecium T013 complex preparation)and test group Ⅱ(supplementing 6% E.faecium T013 complex preparation).The effects of different addition amount of E.faecium T013 complex preparation on the growth performance,apparent digestibility,faecal microbial and plasma biochemical parameters of weaned piglets were studied.Result] Adding 3% and 6% E.faecium T013 complex preparation could enhance the daily feed intake of weaned piglets and lower the feed conversion ratio,but the difference was not significant(P>0.05).Adding 6% E.faecium "T013 complex preparation could enhance the daily weight gain and reduce the diarrhea rate of weaned piglets(P<0.05).After adding 6% E.faecium T013 complex preparation,the apparent digestibility of crude protein and calcium in weaned piglets were significantly improved(P<0.05).The apparent digestibility of feed nutrients such as crude fat and crude fiber in two test groups increased,but the difference was not significant(P>0.05).Compared with control group,fecal pH of piglets in test group Ⅱ extremely significantly decreased,the amount of Escherichia coli extremely significantly decreased and the amount of lactobacillus extremely significantly increased(P<0.01).In test group Ⅱ,the content of serum urea nitrogen in piglets was extremely significantly lower than that of control group(P<0.01)and GPT and GOT were significantly higher than that in control group(P>0.05).Adding E.faecium T013 complex preparation had no significant effect on the contents of IgG,total protein,albumin,and glucose in the serum of piglets(P>0.05).Conclusion] Enterococcus faecium T013 complex preparation could improve the growth performance of weaned piglets,increase the apparent digestibility of crude protein,regulate the intestinal micro-ecological environment and promote the healthy growth of weaned piglets.