摘要
１９９６年９月至１９９７年１月，在河南省许多猪场的仔猪中，散发一种病程短、死亡率高，以突然死亡为主要特征的猪病。剖检空肠可见黑红色和土黄色坏死性肠炎，肠内充满血样液体和气体，肠系膜可见许多大小不一的汽泡。后经对所有送检病死猪进行细菌分离鉴定，小动物接种，生化试验，毒素测定，血清学分型及免疫学试验。确诊为由Ａ型和Ｃ型魏氏梭菌引起的仔猪梭菌性肠炎。
The piglets in a lot of pig farms of Henan were infected naturally with a disease which was characterized by high death rate,short disease process and sudden death from september,1996 to January,1997 and occurred in discrete.The intestinum Jejunums from dead piglets due to the sudden death disease contained fully bloody liquid and gas,and the intima took on redblack and yellow earth necrosis jejunitis.The large number gas bubbles varying in size had beeh found in mesenteritis.The Pathogens were determined to be Clostridium welchii A and Clostridium welchii C by isolating germ,infecting small animal,testing bacterial toxin,identifying serum type,performing biochemical and immunizing experiment.
