【摘要】 拟通过比较魔芋甘露寡糖（konjac mannan oligosaccharide,KMO）、复合芽孢杆菌（compound bacillus,CB）和复合酶制剂（compound enzyme preparation,CEP）对肉兔生产性能、免疫特性及血液生化指标的影响，筛选更为理想的替抗添加剂。将200只（35±2）日龄、健康状况良好、体重相近的生长期伊拉肉兔随机分为5个处理组，每组5个重复，每个重复8只兔。预试期7 d，正式期35 d。结果表明：CB和CEP组肉兔平均日增重显著高于空白对照组和KMO组（p<0.05）；抗生素对照组、CB组和CEP组料重比显著低于空白对照组和KMO组（p<0.05）;CEP组肉兔腹泻率和死亡率最低。添加CB、KMO、CEP对肉兔免疫器官指数没有显著影响（p>0.05）。CB、CEP和抗生素对照组血清TP含量高于空白对照组（p<0.05）;CB组肉兔血清TC含量显著高于空白对照组和抗生素对照组（p<0.05）。CB组、KMO组、CEP组肉兔血清IgM含量均显著高于空白对照组（p<0.05）,CEP组肉兔血清IgM含量显著高于抗生素对照组（p<0.05）;CB组、KMO组CEP组血清IgA含量显著高于空白对照组和抗生素对照组（p<0.05）。可见，与饲粮中添加抗生素相比，复合芽孢杆菌和复合酶制剂的饲喂效果更好，二者均可同时提高肉兔生产性能和免疫机能，本试验条件下复合酶制剂的效果最好。更多还原

【Abstract】 This experiment was conducted to compare the effects of three antifungal additives, Konjac manna oligosaccharides(KMO),complex Bacillus(CB) and complex enzyme preparations(CEP), on the production performance, immune characteristics, and blood biochemical indicators of meat rabbits, and the screening of more ideal substitute antibody additives. A total of 200 healthy Yila meat rabbits with similar body weight and age(35±2 day-old), were randomly divided into 5 treatment groups with 5 replicates per group and 8 rabbits per replicate. The pre-test period lasted for 7 days and the formal period lasted for 35 days. The results were showed as follows: 1) Average daily gain of meat rabbits in CB and CEP groups was significantly higher than that in blank control group and KMO group(p<0.05). The feed/gain of antibiotic control group, CB group and CEP group was significantly lower than that of blank control group and KMO group(p<0.05). The CEP group had the lowest diarrhea and mortality rates in meat rabbits. 2) Adding CB,KMO and CEP had no significant effects on immune organ index of meat rabbits(p>0.05). 3) The serum TP content of CB, CEP and antibiotic control group was higher than that of blank control group p<0.05). The content of TC in serum of meat rabbits in CB group was significantly higher than that in blank and antibiotic control groups(p<0.05). 4) Serum IgM content of meat rabbits in CB group,KMO group and CEP group was significantly higher than that in blank control group(p<0.05), and serum IgM content of meat rabbits in CEP group was significantly higher than that in antibiotic control group(p<0.05). The serum IgA content in CB group, KMO group and CEP group was significantly higher than that in blank control group and antibiotic control group(p<0.05). In conclusion, compared to adding antibiotics to the diet, the feeding effect of CB and CEP is better. Both can improve the production performance and immune function of meat rabbits at the same time, and the CEP has the best effect under the conditions of this experiment.更多还原