title: [The gastric mucosal barrier and the abomasal ulcer in veal calves].
abstract: Besides a review of the literature on the normal structure and function of the abomasum and abomasal ulcers in veal calves the present report contains the findings resulting from investigations on the pathogenesis of antral lesions. Histologically, the antral lesions consisted of focal acute superficial coagulation necrosis and erosions of the mucosa (18 cases), and subacute ulcers (5 cases). Histochemically, the pyloric mucosae of the normal abomasums were characterized by the presence of varying amounts of epithelial mucins. A similar variation in the distribution of mucins was present in the antral mucosae of the abnormal abomasums outside the areas showing antral lesions. The epithelium bordering on mucosal lesions was frequently completely depleted of mucins, whereas peripherally the mucin content of the epithelium showed gradual increase. The histological and histochemical findings suggest an adequate mucous barrier, which may be an important factor in the pathogenesis of abomasal ulcers in veal calves.
mesh_terms: D000018:Abomasum / Q000032:analysis / Q000502:physiology / Q000503:physiopathology; D000821:Animal Feed / Q000009:adverse effects; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology / Q000503:physiopathology*; D005753:Gastric Mucosa / Q000032:analysis / Q000502:physiology; D010528:Peristalsis; D014456:Ulcer / Q000209:etiology / Q000503:physiopathology / Q000662:veterinary*
vernacular_title: De maagslijmvliesbarrière en het ulcus abomasi bij het mestkalf.