【摘要】 采用ELISA方法对采自福建、广东、广西、湖南、湖北5省区22个猪场的1 100份血清样品进行了猪增生性肠炎抗体检测。结果,在被检的22个猪场中猪增生性肠炎抗体全部阳性;但不同阶段的阳性率不同,3~4周龄和8~10周龄猪的阳性率较低,一般低于50%,从13周龄开始阳性率增加,18和24周龄阳性率最高达90%,后备母猪和母猪阳性率高达50%~100%。结果表明,猪增生性肠炎已成为华南地区集约化养猪场的一种高发病。更多还原

【Abstract】 1100 serum samples collected from 22 pig farms distributed in Fujian,Guangdong,Guangxi,Hunan and Hubei provinces,were subjected to ELISA test to detect the antibody against Lawsonia intracellularis.In results,all the 22 pig farms were infected with Lawsonia intracellularis(100%). However,the infection rate differed at different pig ages and on various pig farms,i.e.the gilts and sows suffered seriously with an infection rate of 50%-100%,the piglets at ages of 3-10 weeks got a lower infection rate of less than 50% regularly,but from the 13 weeks-old the infection increased and could reach the higher level up to 90%.The results showed that porcine proliferative enteronitis has become a common disease in South China.更多还原