商品肉用牛皱胃溃疡病发生及流行病学研究

本文应用眼观和病理组织学方法，对282头商品肉用牛皱胃检测，证实胃溃疡病存在，发病率高，达79．4％。病变分布在胃底部和幽门部，以糜烂、溃疡和疤痕病变为主。初步分为复合型、多发型、多发性复合型、巨型、急性多发性糜烂型、急性溃疡型和出血性溃疡型等7种特殊类溃疡。皱胃病变组织未分离出病原意义的病菌。发病与胃内容物量及性状呈明显相关（P＜0．05），发病、病变分布、病变程度与品种和性别无明显相关（P＞0．05）。不同月份发病存在差异，5月最高，9月最低，气温骤变热，发病增加，水牛较黄牛发病季节性明显。

A SURVEY OF OCCURRENCE AND EPIDEMIOLOGICAL OF ABOMASAL ULCERATION IN SLAUGHTERED BEEF CATTLES

Abomasal ulceration was found in 224(79.4% ) of 282 slaughtered beef cattles. The morbidity is high. The lesions are foralized mainly fundus and pyloric area in forum. Lesions consist of erosions, ulcers and scare. 7 special type ulceration were described, they are multiple, complex, multiple and complex, giantism, acute multiple erosions, acute ulcers, bleeding ulcers. No pathogenic bacteria was isolated drin lesions. There are negative corrlation between contents weights, properties in abomasum and occurrence of abomasal ulceration. No obvious correlation between occrmnce of beasal ulceration, distribution of lesions, severity of lesions and sex and breed was observed. The morbidity difference between months were also found. May is the highest time, september is lowest time. Air temperature become higher, the morbidity increases. The changes in water buffalo is more obvious than cattles.