“康泰宁”对雏鸡肠道微生态和免疫功能的影响

Effect of "Kang Tai Ning" on Intestinal Microecology and Immune function in Chickens

研究中药"康泰宁"制剂对雏鸡肠道微生态及免疫功能的影响。将120羽京白雏鸡随机分为4组,分别为"康泰宁"高、中、低剂量组和对照组。中药组分别在基础日粮中添加1.2%、0.8%和0.4%"康泰宁"粉剂,对照组无任何添加。在28日龄和49日龄时,每组随机抽取6羽处死,摘取胸腺、法氏囊和脾脏,测定血清中新城疫抗体效价,并对盲肠内微生物进行计数。结果表明,"康泰宁"中药制剂能显著提高雏鸡免疫器官指数,并使盲肠内乳酸杆菌和双歧杆菌数量显著高于对照组,中剂量和高剂量组的新城疫抗体效价显著高于对照组,形态学观察结果显示中药组免疫器官发育优于对照组。提示中药"康泰宁"可促进雏鸡免疫功能,并有效改善肠道微生态。

The effect of ＂Kang Tai Ning＂ on intestinal microecology and immune function in chickens was studied.120 Beijing white chickens were randomly divided into four groups of 30 each： Kang Tai Ning high dose group,middle dose group,low dose group and control group.Chinese herb groups were added ＂Kang Tai Ning＂ powder of each 1.2%（high dose）,0.8%（middle dose） and 0.4（low dose）,nothing was added into control group.At day 28 and 49,6 chickens were randomly sacrificed and thymus,spleen and bursa of fabricius were weighted for the calculation of immune organ index,and NDV serum antibody titer was determined.The results showed： ＂Kang Tai Ning＂ could significantly improved the chicken immune organ indexes.The quantities of Lactobacillus and Bifidobacterium significantly increased compared with control group,and Escherichia coli amount significantly decreased.NDV serum antibody titers ＂Kang Tai Ning＂ high dose and middle dose groups significantly increased,the development of immune organs in ＂Kang Tai Ning＂ groups were better than that in control group by morphological observation.The experiment suggested that ＂Kang Tai Ning＂ could improved immune function and intestinal microecololgy in chickens.