1971年4月,徐闻县某农场第××生产队养猪场的猪暴发一次钩端螺旋体病流行,作者等与该农场兽医联合进行了调查,现将调查结果报告于下。一、一般情况该养猪场共养猪117头(其猪苗均购自湖南),共发病90头,发病率为76.9%;死亡70头,病死率为77.7%。二、临床表现起病急,体温多升高达41℃左右,精神萎靡,食欲减退乃至废绝,大便秘结。呼吸、心跳均增速。尿 In April 1971, a swine leprosy outbreak was reported in a swine owned pig farm in a farm in Xuwen County. The author conducted a survey jointly with the farmer’s veterinarian and reports the findings. First, the general situation of the pig farms a total of 117 pigs (pigs and seedlings were purchased from Hunan), a total of 90 diseases, the incidence rate was 76.9%; 70 fatal cases, the fatality rate was 77.7%. Second, the clinical manifestations of acute onset, body temperature rose as high as 41 ℃, apathetic, loss of appetite and even abolished, constipation. Breathing, heart rate are increasing. Pee