榆林市一起副猪嗜血杆菌病的诊治

Diagnosis and Treatment of Haemophilus parasuis Infection in a Pig Farm of Yulin City

2017年2月22日以来,榆林市某养猪场猪只出现高热、拉稀、全身点状出血、死亡等症状。通过现场调查、病死猪的病理剖检和实验室病原检测,初步确定为副猪嗜血杆菌感染为主的临床发病。对病死猪剖检可见到肾脏肿大并有针尖样出血点,心包积液呈现多发性纤维素性浆液炎。对5头仔猪进行病原检测发现,4头仔猪副猪嗜血杆菌阳性。统计发现,该猪群母猪和肥育猪的发病率为27.3%,仔猪发病率为80.6%,仔猪病死率为89.2%。仔猪的发病风险是母猪和育肥猪的11.07倍(95%CI:2.6941～45.50),建议猪场加强饲养管理,适时进行疫苗接种。

Since February 22, 2017, some pigs in a hoggery have developed symptoms of high fever, diarrhea, systemic punctate bleeding and death in Yulin city. Through on-site investigation, pathological ex amination of dead pigs and laboratory pathogen detection, it was initially determined to be the clinical oil- set caused by Haemophilus parasuis infection. For the examination of sick and dead pigs, it can be seen that the kidney was swollen and there were a needle-like bleeding points. The pericardial effusion showed multiple fibrinous serositis. After pathogen detection of 5 piglets, 4 piglets were positive for Haemophilus parasuis.Statistics showed that the incidence of sows and fattening pigs was 27.3%, the incidence of piglets was 80.6o//00, and the mortality of piglets was 89.2%. The risk of piglets is 11.07 times （95% CI： 2.6941-45.50） than sows and fattening pigs. It is recommended that pig farms be strengthened in feeding management and vaccination.