摘要
将350只1日龄AA雏鸡随机分为对照组和A、B、C、D四个处理组,分别在常规全价饲料中添加10、20、30和40 g/kg的苦豆籽粕。分别于7、14、21、28、35、42和49日龄随机抽取各组鸡10只剖杀后,采用平板计数法测定鸡盲肠内的双歧杆菌数量。结果,在7、14、21、28、35、42和49日龄,处理B组每1 g盲肠内容物含双歧杆菌的对数值在5个组中均为最高,分别比对照组提高了18.10%、7.06%、10.40%、5.28%、4.95%、0.34%和7.75%,其中在7日龄时差异极显著(P<0.01),在21日龄时差异显著(P<0.05),而在其他日龄差异均不显著。表明在AA肉鸡基础日粮中,添加浓度为20 g/kg的苦豆籽粕可以增殖盲肠中的双歧杆菌数,改善肠道微生物菌群结构。
The 350 1-old-day AA broilers were randomly divided into a control group and 4 treatment groups of A,B,C and D. Groups A,B,C and D were supplied with 10,20,30 and 40 g/kg of the bitter bean seed＇s dregs, respectively. On 7,14,21,28,35,42 and 49-old-day, 10 AA broilers per group were killed and 0.5 g of cecal contents were collected to isolate, incubate and enumerate bifidobacteria by the plate counting method. The logarithmic values of bifidobacteria quantity in the cecal contents per gram of the Group A were the highest in the five groups, and increased by 18.10 % （P〈0.01）, 7.06 %, 10.40% （P〈 0.05）,5.28%,4. 95%,0.34% and 7. 75% on 7,14,21,28,35,42 and 49-old-day respectively,compared with the control group. The results show that supplement with 20 g/kg of the bitter bean seed＇s dregs to basic diet can increase bifidobacteria quantity in the cecal contents of AA broilers, and improve the cecal microbial community structure.
出处
《中国兽医科学》
CAS
CSCD
北大核心
2007年第3期205-208,共4页
Chinese Veterinary Science
基金
国家自然科学基金项目(30360077)
关键词
苦豆籽粕
AA肉鸡
双歧杆菌
盲肠
bitter bean seed＇ s dregs
AA broiler
bifidobacteria
cecum
