猪增生性肠炎研究进展

Progress on Porcine Proliferative Enteropathy

猪增生性肠炎是由胞内劳森菌引起的一种接触性传染病,以肠道增生为主要特征,其临床表现为腹泻、日增重量下降、生长缓慢等,病理变化主要为肠道出血、肠壁增厚、肠黏膜增厚、隐窝上皮细胞增生。该病传播范围广,发病率高,呈世界流行性趋势,严重影响猪场经济效益。本文对其病原、发病机理、流行病学、临床症状与病变、诊断方法和防治措施等进行综述。

Porcine proliferative enteropathy is an infectious disease caused by an obligate intracellular bacterium,Lawsonia intracellularis and characterized by thickening of the intestinal.Clinical symptoms include diarrhea,weight gain decline and slow growth.Anatomical characteristics mainly include blood viscosity,intestinal wall thickening and intestinal mucosal bleeding.Sick pigs are often immunocompromised and prone to secondary infection.It is spreading around the world.The authors review the etiology,pathogenesis,epidemiology,clinical signs and pathology,diagnosis and treatment of Porcine proliferative enteropathy.