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Intestinal Obstruction and Rupture

Cecal impaction with abnormally firm masses of cecal content is a common cause of lower intestinal obstruction in rabbits. These masses often lodge at the fusus coli of the caudal end of the sacculated colon.

Affected rabbits often have a chronic history of intestinal disorders with large, malformed feces. Diets with fine-particle indigestible fiber or diets with small fiber length predispose to this syn­drome. Dry cecal content often occurs in association with

FIG. 6.81. Muscular hypertrophy of the gastric pyloric sphincter of a New Zealand White rabbit, which can result in interference with gastric emptying and subsequent weight loss.

mucoid enteropathy, dysautonomia, and other enteric diseases. Rabbits have also been found to develop obstruc­tion of the jejunum or ileum with bezoars consisting of hair and fiber. Varying stages of obstruction with perito­nitis and rupture were present. Affected rabbits tended to be overweight and an association with handling was noted. The problem was ameliorated by wrapping rabbits in towels as a restraint method.

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Source: Barthold Stephen W., Griffey Stephen M., Percy Dean H.. Pathology of Laboratory Rodents and Rabbits. 4th Edition. — Wiley-Blackwell,2016. — 384 p.. 2016
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