Effects of Probiotics on Growth Performance and Blood Biochemical Indexes of Cherry Valley Ducks

微生态制剂对樱桃谷肉鸭生长性能及血液生化指标的影响（英文）

In order to investigate the effects of probiotics on growth performance, blood biochemical indexes and economic benefits of Cherry Valley ducks, different probiotics were added into the feed of Cherry Valley ducks. Total 240 1-d-old Cherry Valley ducks were selected, and they were randomly divided into 4 groups, including 1 control group and 3 treatment groups. There were 3 replicates for each group and there were 20 ducks for each replicate. The ducks in the control group were fed the basal diet, and the ducks in the 3 treatment groups were fed the basal diet added with Lactobacillus, Bacillus natto and florfenicol, respectively. The test lasted for 42 d. The results showed that the addition of Lactobacillus and Bacillus natto could improve the average daily weight gain and final average weight （P〈0.05） of Cherry Valley ducks, and reduce the glutamic-pyruvic transaminase ac- tivity, alkaline phosphatase activity and serum urinary nitrogen content in duck blood （P〈0.05） and reduce the creatinine content and total cholesterol content in Cherry Valley ducks （P〉0.05）; at the same time, adding probiotics to feed could also in- crease the grass economic benefits of Cherry Valley ducks. In overall, the effects of adding probiotics were better than those of adding antibiotic.

在樱桃谷肉鸭饲料中添加不同微生态制剂,分析其对樱桃谷肉鸭生长性能、血液生化指标及经济效益的影响。试验选取了1日龄的樱桃谷肉鸭240羽,随机分成4组,1个对照组、3个试验组,每组3个重复,每个重复20羽。对照组饲喂基础日粮,试验组分别在基础日粮的基础上添加乳酸杆菌、纳豆芽孢杆菌、氟苯尼考,试验期42 d。结果表明,添加乳酸杆菌、纳豆芽孢杆菌后可以提高樱桃谷肉鸭的平均日增质量及终末平均质量,且各处理间差异显著;降低樱桃谷肉鸭血液中谷丙转氨酶活性、碱性磷酸酶活性、血清尿氮素含量,且各处理间差异显著;降低肌酐、总胆固醇含量,处理间差异不显著;同时,增加樱桃谷肉鸭的毛利润,总体比添加抗生素效果好。