复合益生菌制剂对黄羽肉鸡生产性能、抗氧化指标及免疫功能的影响

发布时间：2018-05-21 11:11

本文选题：益生菌 + 黄羽肉鸡　；参考：《中国兽医学报》2017年08期

【摘要】：为研究复合益生菌制剂对黄羽肉鸡生产性能、抗氧化指标及免疫功能的影响,试验选用360羽黄羽肉鸡混合雏,随机分为4组,A组饲喂基础日粮,B组饲喂基础日粮及低剂量复合益生菌制剂(50g/t)、C组饲喂基础日粮及中剂量复合益生菌制剂(100g/t)、D组饲喂基础日粮及高剂量复合益生菌制剂(300g/t),每组9个重复,每个重复10羽,试验期50d。结果显示,复合益生菌试验D组日增重效果最佳,比对照组显著提高了4.11%(P0.05),但与试验C组差异不显著,试验B组料重比最低,较对照组显著降低了4.58%(P0.05),各益生菌试验组均能促进免疫器官发育,以试验D组免疫器官指数最佳,各试验组均能显著增加十二指肠绒毛长度(P0.05),以试验D组的V/N值(肠绒毛/隐窝)最佳,试验D组显著提高血清中抗氧化指标和禽流感H5疫苗抗体滴度(P0.05),同时增加抗体水平群体整齐度,但与试验C组差异不显著。结果表明,复合益生菌可以显著提高黄羽肉鸡生产性能,促进肠道发育,增强机体免疫功能及抗氧化水平,添加量以100g/t为最佳。
[Abstract]:In order to study the effects of compound probiotics on the performance, antioxidant index and immune function of yellow broilers, 360 yellow broilers were used in the experiment. Four groups were randomly divided into 4 groups: group A fed basic diet and group B fed basic diet and low dose compound probiotics preparation group 50 g / t ~ (-1) C group fed basal diet and medium dose compound probiotics preparation 100 g / t ~ (-1) D group fed basal diet and high dose compound probiotics production. 300 g / t per group, 9 repeats per group, Each replica was 10 for 50 days. The results showed that group D had the best daily gain compared with the control group, but there was no significant difference between group C and group C, and the ratio of feed to weight in group B was the lowest. Compared with the control group, P0.05 was significantly decreased in the control group. All probiotic test groups could promote the development of immune organs, and the immune organ index of group D was the best. All the experimental groups could significantly increase the length of duodenal villi (P0.05). The value of V / N (intestinal villus / crypt) in group D was the best. In group D, the serum antioxidant index and antibody titer of avian influenza H5 vaccine were significantly increased, and the antibody level was also increased, but there was no significant difference between group C and group C in anti-oxidation index and antibody titer of H5 vaccine. The results showed that the compound probiotics could significantly improve the performance of yellow broilers, promote the development of intestinal tract, enhance the immune function and antioxidant level of the body, and the best addition amount was 100g/t.
【作者单位】：华南农业大学兽医学院;广东海大集团股份有限公司畜牧水产研究中心;
【基金】：广州市博士后科研启动资助项目
【分类号】：S831.5

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