摘要
对北京动物园圈养条件下的５例朱标本材料做了比较解剖．结果：小肠是消化管道中的最长者，平均长度约为体长的１７５倍；回肠、盲肠缩短；１岁以上个体小肠和大肠外径最大绝对值均小于十二指肠；食管较细，管壁较薄，不宜吞食体积较大或坚硬食物．
e conducted the anatomy with 5 Japanese Crested Ibis which are captive breeding in Beijing Zoological Garden. The result is that the intestinum tenuse is the longest of the canalis alimentarius. The length is 1.75 times of the body. the ileum and the caecum have exuviated. the biggest absolute value of the small in testine and the large intestine's enternal diameter which areabove 1 years old are all inthe duodenum. The oesophagus' wall is much thinner and would like not transport big and hard food.
