包被酸化剂对黄羽肉鸡生长性能、消化道内环境及血清生化指标的影响

发布时间：2018-04-30 08:44

本文选题：黄羽肉鸡 + 生长性能　；参考：《动物营养学报》2016年02期

【摘要】：本试验旨在研究饲粮中添加不同剂量包被酸化剂对黄羽肉鸡生长性能、消化道内环境及血清生化指标的影响。选取1日龄体重相近的健康黄羽肉鸡300只,随机分为4个组,每组5个重复,每个重复15只。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加0.1%、0.3%、0.5%包被酸化剂的试验饲粮。试验期63 d。结果表明:1)0.1%、0.3%、0.5%包被酸化剂组的末重、体增重均极显著高于对照组(P0.01)。2)0.3%包被酸化剂组胸肌率、腿肌率均显著高于对照组(P0.05);0.3%包被酸化剂组十二指肠及0.5%包被酸化剂组腺胃p H显著低于对照组(P0.05);0.3%包被酸化剂组十二指肠胰蛋白酶、淀粉酶活性及盲肠乳酸菌数量显著高于对照组(P0.05),大肠杆菌数量显著低于对照组(P0.05)。3)0.1%包被酸化剂组碱性磷酸酶(AKP)活性显著高于对照组(P0.05),尿素氮含量则显著低于对照组(P0.05);0.3%包被酸化剂组AKP、过氧化氢酶(CAT)活性及总抗氧化能力显著高于对照组(P0.05)。由此可见,饲粮中添加包被酸化剂能够改善黄羽肉鸡生长性能,降低肠道p H,提高消化酶活性,改善微生物区系组成及血清生化指标,适宜添加量为0.3%。
[Abstract]:The purpose of this study was to study the effects of different doses of encapsulated acidifiers on growth performance, digestive tract environment and serum biochemical indexes of yellow broilers. Three hundred healthy yellow broilers with similar body weight at 1 day old were randomly divided into 4 groups with 5 replicates in each group and 15 in each group. The control group was fed with basic diet and the experimental group was fed with 0.5% acidifier. The experimental period was 63 days. The results showed that the end weight and body weight gain of 0.5% Acidizer group were significantly higher than that of the control group (P 0.01U 路2C 0.3wt%). The pectoralis muscle rate in the 0.5% coated acidifier group was significantly higher than that in the control group. The percentage of leg muscle was significantly higher in the control group than that in the control group (P 0.05%) and the ratio of pH in the glandular stomach of the control group was significantly lower than that in the control group (P 0.05%) and the control group (P 0.05%). The activity of amylase and the number of lactic acid bacteria in cecum were significantly higher than those in control group (P 0.05N), and the number of Escherichia coli was significantly lower than that of control group (P 0.05U 路3C 0.1%). The activity of alkaline phosphatase (AKP) was significantly higher than that of control group (P 0.05), and the content of urea nitrogen was significantly lower than that of control group (P 0.05). The activity of AKP, catalase and CATand the total antioxidant activity in the group of 0.3wt% P0. 05% coated with acidifier were significantly higher than those in the control group (P 0. 05). It can be seen that adding encapsulated acidifier in diet can improve growth performance, decrease intestinal pH, increase digestive enzyme activity, improve microbial fauna composition and serum biochemical index of yellow feather broiler, and the appropriate addition amount is 0.3%.
【作者单位】：福建农林大学动物科学学院;
【基金】：福建省鸡产业体系岗位专家经费资助项目(K83139297)
【分类号】：S831.5

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