摘要
本文旨在研究杜仲提取物对三黄鸡生产性能和肠道微生物菌群的影响，并探讨了杜仲提取物在肉鸡日粮中的适宜添加量。试验选用1日龄健康三黄鸡150羽，随机分为5个处理组，每组30羽，设3个重复，每个重复10羽。采用单因子试验设计，在玉米一豆粕型日粮中分别添加1500、2000、2500g／t的杜仲提取物和50mg／kg的黄霉素（8％），对照组饲喂基础日粮，试验期10周，分2个阶段进行（0～4和5～10周龄）。结果表明：日粮中添加杜仲提取物能显著提高三黄鸡平均日增重（P〈0．05），提高饲料转化率，降低盲肠中大肠杆菌的数量（P〈0．05），且有利于盲、回肠中乳酸杆菌和双歧杆菌的增殖。根据试验结果，肉鸡日粮中杜仲提取物的适宜添加量为2000～2500g／t。
The experiment was carried out to investigate the effects of Eucommia ulmoides extract on performance and intestinal microflora of broilers, and discuss the optimal supplement in broiler diets. One hundred and fifty five one-day old broilers were randomly assigned to five treatments with three replicates. There were ten broilers per replicate. The experiment was divided into two phases （0-4 week and 5-10 week）. The birds were fed the basal diet, or basal diet supplemented With 1 500, 2 000 and 2 500 g/t Eucommia ulmoides extract or 50 mg/kg Flavomycin （8%）. The results showed that the average daily gain of broiler was increased by Eucommia ulmoides extract supplementation （P〈0. 05）, the FCR was improved and the sum of Escherichia Coli in cecum was decreased （P〈0. 05）. It showed positive effect on the colonization of Lactic bacteria and Bifidobacteriu. Based on the results, it is suggested that the optimal level of Eucommia ulmoides extract in broiler diet was 2 000-2 500 g/t. [Chinese Journal of Animal Nutrition, 2007,19（1） ：61-65 ]
出处
《动物营养学报》
CAS
CSCD
北大核心
2007年第1期61-65,共5页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
湖南省重大专项"植物提取物有效成分在动物生产中应用的基础理论研究"(05NK003)
关键词
杜仲提取物
三黄鸡
生产性能
肠道微生物
Eucommia ulmoides extract
Broilers
Growth performance
Intestinal microflora
