复合微生态制剂对育肥猪生产性能的影响

Effect of Compound Microecologics on Production Performance of Fattening Pigs

选取健康、体重71k左右、公母比例一致、日龄相近的杜×长×大三元商品育肥猪108头，完全随机分成3组，每组6个重复（栏），每个重复6头猪。试验饲粮分为3个处理，对照组、抗生素组和微生态组，对照组添加基础日粮，抗生素组在对照组的基础上添加500克／吨金霉素，微生态组在对照组的基础上添加100克／吨微生态制剂。试验结果表明，与对照组相比，抗生素组、微生态组的平均目采食量均有提高的趋势；在平均日增重方面，抗生素组、微生态组较对照组分别显著提高3．58％、3．99％；在料肉比方面，抗生素组、微生态组较对照组分别显著降低0．06、0．05。与对照组相比，抗生素组和复合微生态制剂组均显著降低腹泻率。试验结束后，通过观察猪的健康活力情况，复合微生态制剂组的猪皮毛红亮，精神状态好。

108 healthy fattening pigs （Duroc × Yorkshire ×Landrace, 71kg） were randomly divided into 3 groups with 6 replicates of 6 each. The control group was fed with basic diet ; the microecological group was fed with basic diet with 100mg/kg microecologics; the antibiotic group was fed with basic diet with 500mg/kg chlortetracycline. The test results showed that, compared with the control group, the average feed intake of the antibiotic group and microecological group were increased; the average daily gain of the antibiotic group and microecological group were sig- nificantly increased 3.58% and 3.99% ; the feed conversion ratio of the antibiotic group and mi- croecological group were significantly reduced 0.06, 0.05 and the diarrhea rate of the antibiotic group and compound microecological preparation group were significantly reduced. During the test, the pig in the compound microecological preparation group kept healthy and active.