Large intestine was very short with more and shorter folds . there were no ancrovilli projected from the sche of epithelial cells . at the apex of the cytoplasm there were nurnerous mucous granular no glands were seen in lnye intestine 大肠很短,皱襞数量增多,但高度变矮,上皮细胞表面已无微绒毛伸出,但顶部胞质填充大量粘液颗粒。