Rabbit Mucoid Enteritis Study Guide

Overview and Clinical Importance

Mucoid enteritis (also called mucoid enteropathy) is a distinct, often fatal diarrheal disease of rabbits characterized by minimal inflammation, excessive mucus hypersecretion, and accumulation of gelatinous mucus in the small and large intestines. This condition represents a major cause of mortality in young weaned rabbits and is a high-yield topic for the NAVLE examination.

The disease is most commonly seen in rabbits between 7 to 10 weeks of age, though adults can be affected. The case fatality rate is alarmingly high, ranging from 60% to 100%, making early recognition and prevention critical. Despite decades of research, the exact etiology remains poorly understood, with multiple factors implicated including diet, stress, intestinal dysbiosis, and the physiological transition from neonatal to adolescent digestive function.

Etiology and Pathogenesis

Multifactorial Cause

The exact cause of mucoid enteritis remains unknown, but the disease is thought to result from multiple interacting factors. No single bacterium has been consistently implicated as the primary causative agent, distinguishing this condition from bacterial enteritides like Clostridium spiroforme enterotoxemia or Escherichia coli colibacillosis.