饮水型罗勒油-柠檬酸复合制剂对肉鸡的生产性能和肠道菌群的影响

Effect of drinking water type basil oil-citric acid composite formulation on the production performance and gut microbiota of broiler chickens

该试验目的在于研究饮水型罗勒油-柠檬酸复合制剂对肉鸡的生产性能和肠道菌群的作用。选用3周龄处州三黄肉鸡150羽,随机分为2组,每组3个重复,每个重复25只。对照组饮用清水;试验组的饮用水中在第1周和第5周全程添加0.1%罗勒油-柠檬酸复合制剂,其余时间段则不添加。两组都饲喂肉用仔鸡中期全价配合饲料。试验期共计7周。结果表明,饮水中添加0.1%罗勒油-柠檬酸复合制剂能够明显提高肉鸡的平均体重和平均日增重,增加第3周时粪便中乳酸杆菌数量,降低大肠埃希氏菌数量;但是第7周时对盲肠菌群数量没有影响。表明饮水中添加0.1%罗勒油-柠檬酸复合制剂能够明显提高肉鸡的生产性能。

The purpose of this experiment is to investigate the effects of drinking water type basil oil-citric acid composite formulation on the production performance and gut microbiota of broiler chickens.1503-week-old Chuzhou Sanhuang broiler chickens were selected and randomly divided into 2 groups,with 3 replicates in each group and 25 chickens in each replicate.The control group drank clean water.The drinking water of the experimental group was supplemented with 0.1%basil oil-citric acid composite formulation throughout the first and fifth weeks,and did not add during the remaining time periods.Both groups were fed with mid stage complete compound feed for broiler chickens.The experimental period is a total of 7 weeks.The results showed that adding 0.1%basil oil-citric acid composite formulation to drinking water could significantly increase the average body weight and daily weight gain of broilers,increase the number of Lactobacillus in feces at week 3,and reduce the number of Escherichia coli.However,there was no effect on the number of cecal microbiota at week 7.It indicates that adding 0.1%basil oil-citric acid composite formulation to drinking water can significantly improve the production performance of broilers.