枯草芽孢杆菌制剂对产蛋后期蛋鸡生产性能、蛋品质、免疫及肠道菌群的影响

发布时间：2018-05-18 07:19

  本文选题：枯草芽孢杆菌制剂 + 产蛋后期蛋鸡　； 参考：《中国畜牧杂志》2016年07期

【摘要】：本试验旨在通过研究枯草芽孢杆菌制剂对产蛋后期蛋鸡生产性能、蛋品质、免疫及肠道菌群的影响,探明其应用效果和适宜添加量。试验选用1440只产蛋后期(47周龄)"新杨黑"蛋鸡,随机分成4组,每组4个重复,每个重复90只鸡。对照组饲喂基础饲粮,3个试验组在基础饲粮中分别添加0.25%、0.5%、0.75%的枯草芽孢杆菌制剂(等量的沸石粉被替换),试验期60 d。结果表明:与对照组相比,试验组Ⅰ能显著提高蛋鸡的平均蛋重(P0.05),显著降低腹泻率(P0.05);试验组Ⅱ和试验组Ⅲ能显著提高蛋鸡的产蛋率、平均蛋重、蛋黄相对重、血清Ig A和Ig G含量(P0.05),降低破蛋率、料蛋比和腹泻率(P0.05);3个试验组能不同程度的显著降低盲肠中大肠杆菌数量(P0.05),提高乳酸菌和双歧杆菌数量(P0.05)。结论:枯草芽孢杆菌制剂可显著提高产蛋后期蛋鸡生产性能、蛋品质和免疫,改善肠道健康,且适宜添加剂量为0.5%。
[Abstract]:The purpose of this experiment was to study the effects of Bacillus subtilis preparation on the performance, egg quality, immunity and intestinal flora of laying hens in the later stage of laying, and to find out the application effect and the appropriate addition amount of Bacillus subtilis. 1440 (47 weeks old) "Xinyang Black" laying hens were randomly divided into 4 groups, 4 replicates in each group and 90 chickens in each replica. The control group was fed with basic diet, and the three experimental groups were fed with 0.25% Bacillus subtilis (0.75%) in the basal diet (the same amount of boiling stone powder was replaced for 60 days). The results showed that compared with the control group, the average egg weight and diarrhea rate of the control group 鈪，

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