藏绵羊和藏山羊小肠黏膜结构的比较研究

Comparative Study on Small Intestinal Mucosal Structure between Tibetan Sheep and Tibetan Goat

[目的]探讨藏绵羊和藏山羊在高寒低氧环境中小肠黏膜结构的适应特征。[方法]采用组织学和图像分析法,对4只藏绵羊和4只藏山羊小肠不同肠段的黏膜结构的形态特征进行比较。[结果]藏山羊小肠绒毛长度和V/C值均显著高于藏绵羊(P<0.05),而藏绵羊小肠黏膜的厚度大于藏山羊,但差异不显著(P>0.05),藏绵羊小肠肌层的厚度显著大于藏山羊的(P<0.05)。[结论]藏山羊的消化吸收功能强于藏绵羊。

[Objective] The aim was to investigate the characteristics of adaptation of small intestinal mucosal structure in Tibetan sheep and Tibetan goat.[Method] The morphology characteristics of mucosal structure in different parts of small intestine between Tibetan antelope（n=5） and Tibetan sheep（n=5） were measured by histological method and the scion image software analysis techniques method.[Result] The length of small intestine villi and V/C values of Tibetan goat were significantly higher than those of Tibetan sheep（P0.05）,the thickness of intestinal mucosa in Tibetan sheep was greater than that of Tibetan sheep,but there was no significant difference（P0.05）.The muscle thickness in Tibetan sheep was significantly greater than that of Tibetan sheep（P0.05）.[Conclusion] The small intestinal digestion and absorption function of Tibetan goat are stronger than that of Tibetan sheep.