1. The lower oesophageal sphincter pressure was measured as the difference between the sleeve pressure and the fundic pressure.

2. The mucous membrane of the Abomasum is covered by prismatic epithelium and contains fundic, pyloric, and cardiac glands

3. Immunoreactivity of BAP31 was prominent in fundic glands, colon, pancreatic Acinuses, and liver but not in skeleton muscle and lung

4. Grossly visible lesions, thickening, swelling, and extensive areas of hyperemia were observed on all mucous membranes of the Abomasa; these findings were particularly restricted to fundic regions (Fig

5. The effects of dietary urea supplementation and of a 10-week trickle infection regime, simulating chronic exposure to Haemonchus contortus, on the zymogenic population of the Abomasa of Hampshire Down lambs was examined.At necropsy a variety of parameters including plasma pepsinogen concentrations, the wet weights of Abomasal fundic mucosal pieces and the amounts of pepsinogen contained in