松鼠消化系统的形态学研究

Study on the Morphology of Digestive System of Sciuridae vulgaris

[目的]了解松鼠消化系统与食性的关系。[方法]对5只成体松鼠的消化系统进行解剖,并对各器官进行研究。[结果]松鼠的消化管总长为(1 845.7±171.07)mm,是体长的(7.69±0.57)倍。其中,小肠占消化管总长的65.0%±2.0%,为体长的4.97±0.32倍。[结论]松鼠小肠最发达,而松鼠消化道结构是与其食性相适应的。

[Objective] The research aimed to understand the relationship between the digestive system of Sciuridae vulgaris and its feeding habits.[Method] The digestive systems of five adult S.vulgaris were anatomized and all the organs were measured.[Result] The total length of digestive tube of S.vulgaris was（1 845.7±171.07）mm,which is 7.69±0.57 times as its body length.Its small intestine accounted for 65.0%±2.0% in the total length of digestive tube,which was 4.97±0.32 times as the body length.[Conclusion] The small intestine of S.vulgaris was the most development and the structure of S.vulgaris＇s digestive tract was the suitable for the feeding habits.