Some Developmental Studies On The Small Intestine Of The One Humped Camels Camelus Dromedarius

This study was carried on 94 specimens, 85 camel embryos and feti and 9 adult camels. The CVRL of camel embryos and fetus ranged from o.8cm to 127cm. The age of adult camel ranged from 5-9years. The wholeembryos, intestine of small fetus and small specimespecimens were fixed in neutral formalin, Bouin and susa solution, thenprocessed histologically for microscopical examination with L.M.The specimens were collected for the electron microscopical studies from camel fetus at 64cm CVRL and at 11 Ocm CVRL; and from adult camels at 8 years old.The results were showed that, the primordia of the intestine appeared111 camel embryos at .8cm CVRL and it was lined by simple columnar epitheliwn. The epithelium was increased to be stratified colwnnarepithelium up to 9 rows of cells, then decreased to be one layer on the villiwhile the intervil1us part still stratified columnar epithelium:The first appearance of the villi was at 9.9cm CVRL as epithelial outgrowth and it became well developed at I O.3cm CVRL. It was long injejunum than duodenum and ileumThe intestinal glands (crypt of Lieberkhun) were appeared at 13cmCVRL as epithelial down growth in the propria submucosa. It appeared atfirst in the duodenum and jejunum then appeared in the ileum later on at