摘要
In the study, the methods of applied histology and histochemistry were used to determine intestinal villus length, crypt depth, the ratio of intestinal villus length to crypt depth, mucous membrane thickness and intestinal wall thickness of duodenum, jejunum and ileum of 42-day-old broilers, so as to study the effects of different conncentrations of homologous probiottcs on small intestinal mucosa struc- ture of the broilers. The results showed that the effect of 0.3% probiotics on small intestine mucosal structures was the best, such as the length of intestinal villus was the longest, the ratio of villus length to crypt depth was the largest, the thins of mucous membrane and intestinal wall was the thickest. These showed that 0,3% probiotics had best effect on improving and enhancing the digestion-absorption func- tion of the small intestine of the broilers.
为了研究不同剂量的益生素对肉仔鸡小肠黏膜结构的影响,试验采用应用组织学和组织化学方法,测定了42日龄肉鸡十二指肠、空场、回肠的绒毛长度、隐窝深度、绒毛长度与隐窝深度比值、黏膜厚度和肠壁厚度等。结果表明:0.3%益生素对肉鸡小肠黏膜结构的影响最佳,肠绒毛长度最长,绒毛长度/隐窝深度比值最大,黏膜厚度和肠壁厚度最厚。说明0.3%益生素对改善和增强肉鸡小肠的消化吸收功能效果最好。
基金
Supported by the Project of Beijing Vocational College of Agriculture(XY-YF-14-18
XYYF-14-16)~~
