纵纹腹小鸮Athene noctua消化系统形态学研究

本文对纵纹腹小鸮Athene noctua的消化系统形态学结构进行了较为系统的解剖与观察。结果表明：纵纹腹小鹗舌根表面具有尖端指向后方的栉状突，可防止食物的滑脱；无嗉囊，食管相对比较宽阔，且粘膜褶发达；肌胃的结构适于其食肉特性，壁薄，内有粘膜褶，伸缩性较大，其作用除消化外，尚有储食功能；小肠发达；具两条末端膨大的盲肠。文中还与部分鸟类作了比较。

Morphological Observation on Digestive System of Athene noctua

The observation on morphological structures of digestive system of Athene noctua has been carried out systematically. Results are as follows: There are many bomblike papillas pointing to hind in surface of tongue and the papillas can prevent food from slipping. It has no crop while the esophagus is expansive and has many pleats. The structure of the muscular stomach is suit for its carnivorous feature and its wall is thin having pleats and strong retractility, which have the function of saving food except digesting food. The small intestine is very much developed and it has both side cecum and it swells at the end. Compared to other birds, the carnivorous birds have developed small intestine and undeveloped cecum, on the contrary, the herbivorous birds have undeveloped small intestine and very developed cecum.