加味六君子汤发酵剂对肉鸡生长性能和肠道环境的影响
Effects of modified Liujunzi decoction on growth performance and intestinal environment of broilers
王中杰 1孙新堂 1李安东 1桑明山 2苏丹1
作者信息
- 1. 山东畜牧兽医职业学院,山东潍坊 261061
- 2. 寿光市畜牧业发展中心,山东潍坊 262700
- 折叠
摘要
试验旨在研究加味六君子汤发酵剂对肉鸡生长性能、肠道酶活性、菌群数量及肠道pH值的影响.试验选取体重相近、健康的1日龄白羽肉仔鸡400只,随机分为4组,每组5个重复,每个重复20只鸡.A组、B组、C组分别在基础饲粮中添加0.6％发酵中药、1.2％发酵中药、1.2％未发酵中药,D组(对照组)饲喂基础饲粮.预试期7d,试验期28 d.结果显示,与对照组相比,A组和B组肉鸡的平均日增重以及肠道淀粉酶和蛋白酶活性升高(P＜0.05),回肠乳酸杆菌数量增加(P＜0.05),36日龄肉鸡回肠和盲肠大肠杆菌数量减少(P＜0.05).与对照组相比,20日龄B组空肠、回肠、盲肠pH值下降(P＜0.05),36 日龄A组和B组肉鸡空肠、回肠、盲肠pH值下降(P＜0.05).研究表明,在肉鸡饲粮中添加一定量的加味六君子汤发酵剂,可以改善肉鸡肠道环境,促进消化和机体发育,添加剂量以0.6％为宜.
Abstract
The experiment aimed to study the effects of fermented additive of modified Liujunzi decoction on the growth performance,intestinal enzyme activity,microbial population,and intestinal pH value of broilers.Four hundred healthy one-day-old white feather broilers with similar body weights were randomly divided into four groups,with five replicates per group and 20 broilers per replicate.Group A,group B,and group C were fed a basal diet supplemented with 0.6％fermented Chinese herbal medicine,1.2％fermented Chinese herbal medicine,and 1.2％non-fermented Chinese herbal medicine,respectively.Group D(control group)was fed a basal diet.The preliminary trial lasted for seven days,followed by a 28-day experimental period.The results showed that compared with the control group,the average daily weight gain of broilers in the group A and group B increased,as well as the activities of intestinal amylase and protease(P＜0.05).The population of Lactobacillus in the ileum increased(P＜0.05),while the populations of Escherichia coli in the ileum and cecum of 36-day-old broilers decreased(P＜0.05).Compared with the control group,the pH values of the duodenum,jejunum,and cecum in the group B at 20 days of age decreased(P＜0.05),and the pH values of the duodenum,jejunum,and cecum in the group A and group B at 36 days of age decreased(P＜0.05).The study indicates that adding a certain amount of fermented additive of modified Liujunzi decoction to broiler diets can improve the intestinal environment,promote digestion and body development,and the recommended dosage is 0.6％.
关键词
加味六君子汤/发酵中药/肉鸡/生长性能/肠道酶活性/菌群数量Key words
modified Liujunzi decoction/fermented Chinese medicine/broilers/growth performance/intestinal enzyme activity/flora number引用本文复制引用
基金项目
山东省科技型中小企业创新能力提升工程项目(2021TSGC1290)
潍坊市科技发展项目(2021GX032)
寒亭区应用技术研究与开发项目(ZJ202112)
出版年
2024
国家科技期刊平台
NSTL
万方数据