乳酸菌类微生态制剂对断奶獭兔生长性能的影响

Effect of Microbial Ecological Agent Including the Lactic Acid Bacteria as the Foundation on Growth Performance of Weaning Rex Rabbits

本试验旨在研究乳酸菌类微生态制剖对断奶獭兔生长性能和腹泻率的影响。采用单因子试验，选取40只、42日龄断奶獭兔随机平均分成2组，每组2个重复，每个重复10只。对照组饲喂基础日粮，试验组在基础日粮基础上添加200克／吨皮毛动物用微生态制剂。试验结果表明添加复合微生态制剂21天后，复合微生态组较对照组显著提高增重16．18％（P〈0．05）；与对照组相比，复合微生态组显著提高肠道中乳酸菌数（P〈0．05），显著降低肠道中大肠杆菌数（P〈0．05）；与对照组相比，复合微生态’组腹泻率显著降低37．5％，死亡率显著降低40％。本试验表明在獭兔日粮中添加乳酸菌类微生态制剂能够显著提高獭兔生长性能，显著降低腹泻率和死淘率。

The objective of this experiment was to study the effects of dietary microbial ecological agent on the growth performance and the incidence of weaning rex rabbits. A total of 40 42 -dayold weaning rex rabbits with similar bobyweight were randomly allocated into 2 groups with 2 replicates per group and 10 rabbits in each replicate. The control group was fed basal diet, and themicroecotogical group was fed experimental diet of basic diet with 200g/t microbial ecological agent including the lactic acid bacteria as the foundation. The results showed that, in the whole experiment period, the microbial ecological agent significantly increased average weight gain by 16.81% compared with the control group（ P 〈0.05）. Compared with the control group, the number of lactobacillus of intestine were significantly increased and the number of Escherichia coli of intestine were significantly decreased by adding microbial ecological agent （ P 〈0.05 ）. Compared with the control group, the microbial ecological agent group significantly decreased the diarrhea rate by 37.5%, significantly decreased the mortality by 40%, In conclusion, supplementation with 200g/t lacffc acid bacteria; improved the growth performance, decreased the diarrhea rate and the mortality of weaning rex rabbits.