The present study was done in order to demonstrate the histological, histochemical as well as surface architecture of the posterior intestine of grass carp. The epithelium of posterior intestine was constituted of enterocytes (simple columnar epithelium), goblet cells, enteroendocrine cells and lymphocytes. The enterocytes were characterized by numerous large vesicles, which may represent pinocytotic activity to some nutrients. The goblet cells gave positive reaction to both PAS and Alcian blue, in addition to presence of metachromatic substances by toluidine blue. The lamina propria-sub mucosa was consisted of loose connective tissue with abundant collagen and elastic fibers.

The present study was done in order to demonstrate the histological, histochemical as well as surface architecture of the posterior intestine of grass carp. The epithelium of posterior intestine was constituted of enterocytes (simple columnar epithelium), goblet cells, enteroendocrine cells and lymphocytes. The enterocytes were characterized by numerous large vesicles, which may represent pinocytotic activity to some nutrients. The goblet cells gave positive reaction to both PAS and Alcian blue, in addition to presence of metachromatic substances by toluidine blue. The lamina propria-sub mucosa was consisted of loose connective tissue with abundant collagen and elastic fibers.

The present work was carried out on 20 specimens of grass carp in order to observe the morphological features of intestine. The present study showed that the intestine was long, which may help in retention of food for a longer period of time to ensure proper digestion. Also, the percent of relative gut length (RGL) of grass carp was 1.92%. This RGL with a large intestinal diameter of this species allowing increase the storage capacity of food. The intestine of grass carp were divided into anterior, posterior intestine and rectum. There were no intestinal villi or multicellular intestinal glands in any regions of intestine. The most important features of anterior intestine were a wide diameter of the lumen and a great number and height of mucosal folds. The anterior intestine was lined by simple columnar epithelium, intercalated with goblet cells, wandering lymphocytes and enteroendocrine cells. Scanning electron microscopy, revealed presence of long wavy mucosal folds that formed of enterocytes covered with numerous microvilli, intermingled with numerous openings for goblet cells.

The present work was carried out on 20 specimens of grass carp in order to observe the morphological features of intestine. The present study showed that the intestine was long, which may help in retention of food for a longer period of time to ensure proper digestion. Also, the percent of relative gut length (RGL) of grass carp was 1.92%. This RGL with a large intestinal diameter of this species allowing increase the storage capacity of food. The intestine of grass carp were divided into anterior, posterior intestine and rectum. There were no intestinal villi or multicellular intestinal glands in any regions of intestine. The most important features of anterior intestine were a wide diameter of the lumen and a great number and height of mucosal folds. The anterior intestine was lined by simple columnar epithelium, intercalated with goblet cells, wandering lymphocytes and enteroendocrine cells. Scanning electron microscopy, revealed presence of long wavy mucosal folds that formed of enterocytes covered with numerous microvilli, intermingled with numerous openings for goblet cells.

The present work was carried out on 20 specimens of grass carp in order to observe the morphological features of intestine. The present study showed that the intestine was long, which may help in retention of food for a longer period of time to ensure proper digestion. Also, the percent of relative gut length (RGL) of grass carp was 1.92%. This RGL with a large intestinal diameter of this species allowing increase the storage capacity of food. The intestine of grass carp were divided into anterior, posterior intestine and rectum. There were no intestinal villi or multicellular intestinal glands in any regions of intestine. The most important features of anterior intestine were a wide diameter of the lumen and a great number and height of mucosal folds. The anterior intestine was lined by simple columnar epithelium, intercalated with goblet cells, wandering lymphocytes and enteroendocrine cells. Scanning electron microscopy, revealed presence of long wavy mucosal folds that formed of enterocytes covered with numerous microvilli, intermingled with numerous openings for goblet cells.

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Abstract. A benign cartilaginous tumor, chondroma, occurred in a 3.5 year-old ewe that was presented to the Veterinary Teaching Hospital, College of Agriculture and Veterinary Medicine, Qassim University. The tumor mass was in the form of a massive hard swelling at the right shoulder region. The ewe was not able to bear weight on the right forelimb that was abducted laterally. Exploration of that swelling revealed blood tinged serous fluid. The ewe was euthanized on owner’s request. At necropsy, the swelling measured approximately 53cm in length, 37cm in width and 25cm in depth and extending from the right forelimb to the thoracic cage. The contoured borders were covered by fibrous tissue capsule and the tumor was difficult to cut through. On cut surface, the tumor was yellowish in color with small cartilaginous multilobular structure and contained one compartment filled with blood tinged serous fluid. The case was diagnosed histopathologically as a chondroma.

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