Porcine Gastric Ulcers Study Guide
Overview and Clinical Importance
Gastric ulceration in swine, more accurately termed gastroesophageal ulceration, is one of the most economically significant non-infectious diseases in modern swine production. Lesions are almost exclusively confined to the pars esophagea, the nonglandular region of the stomach surrounding the esophageal opening. This condition represents a significant cause of sudden death in grower-finisher pigs and is a common finding at slaughter.
Surveys from abattoirs reveal that approximately 80-90% of pigs have some type of lesion in the pars esophageal region at slaughter, with 20% showing erosive lesions and an additional 60% demonstrating pre-ulcerative parakeratosis lesions.
Anatomy and Pathophysiology
Gastric Anatomy
The porcine stomach has four distinct anatomical regions with different mucosal characteristics:
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