复合酶制剂对肉鸡生产性能的影响

研究复合酶制剂的不同添加水平对肉鸡日增重、料重比和成活率的影响。选用1日龄艾维茵肉鸡360只,随机分为4组,每组3个重复,每个重复30只。对照组饲喂基础日粮,试验Ⅰ,Ⅱ,Ⅲ组分别在基础日粮的基础上添加0.05%,0.10%和0.15%复合酶制剂。试验期为42 d。结果表明:与对照组相比,试验Ⅰ,Ⅱ,Ⅲ组的日增重分别提高5.96%,9.17%,4.30%,料重比分别降低7.08%,11.32%,4.25%,差异显著(P<0.05),成活率分别提高4.88%,6.07%,6.07%。各试验组鸡在日增重、饲料转化率、成活率方面显著优于对照组,以试验Ⅱ组效果最佳。

Effects of Multi-Enzyme Preparations on Production Performance of Broilers

The aim of the experiment was to study the effect of different level of multi-enzyme preparations on the average daily body weight gains,the ratio of feed to body weight gains and the survival rate of the broilers.Three hundred and sixty 1-day age Avian broilers were randomly divided into 4 groups,3 replicates in each group and 30 broilers for each replicate.The control group was fed with basic diet.GroupⅠ,Ⅱ and Ⅲ as trial groups were fed with the basal diet added 0.05%,0.10%,0.15% multi-enzyme preparations respectively during the phase of 42 days.The results showed that: In the whole testing period,compared with the control group,average individual daily weight gain of groupⅠ,Ⅱ and Ⅲ increased by 5.96%,9.17% and 4.30% respectively, the ratio of feed to body weight gains decreasing by 7.08%,11.32% and 4.25%(P<0.05) and the survival rate increasing by 4.88%,6.07% and 6.07% respectively. Conclusion: the trial groups were significantly superior in the average individual daily weight gain,the feed efficiency and the survival rate to that of the control group and GroupⅡ was the best.