prevalence of different abomasal ulcers in buffalos of ahvaz: an abbatorial survey

abomasal ulcer is a digestive disorder in domestic ruminants. there are several forms of ulcers which produce different clinical signs. for determination of lesion prevalence, abomasa of 200 buffaloes were examined grossly and in some cases, histopathologically. one hundred and twenty seven examined abomasa (63.5%) had ulcerative lesions. all ulcers (except in 2 cases) were classified as type 1. this type of lesion was sub-classified to 1a, 1b, 1c and 1d, based on its severity. eighty six abomasa (43%) had minimal mucosal defects which were sub- classified as type 1a. deeper injuries, type 1b, were observed in 62 (31%) abomasa. type 1c and 1d were seen in 19 (9.5%) and 18 (9%) abomasa, respectively. the most of abomasa had several kinds of ulcers. while types 1a and 1b mainly occurred in the pyloric region, type 1d was mainly shown in the fundic region. the frequency for type 1c ulcer occurrence was the same in both regions. frequency of abomasal ulcer, did not show any sex or age dependency