实验性鸭疫里氏杆菌病病理学动态变化  

Pathological changes in ducklings with experimental Rimerella anatipestifer infection

作　　者：雷红宇[1] 苏建明[1] 袁慧[1] 胡仕凤[1] 宁玲忠[1] 陈可毅[1] 

机构地区：[1]湖南农业大学动物医学院,湖南长沙410128

出　　处：《畜牧与兽医》2008年第3期22-26,共5页Animal Husbandry & Veterinary Medicine

摘　　要：对90只11日龄鸭通过颈部皮下人工接种鸭疫里氏杆菌,分别在感染后12h、24h、36h、48h、60h、72h剖杀,观察其动态病理变化。结果表明,鸭在感染24h后就开始出现浆液纤维素性心包炎、肝周炎、气囊炎,并持续整个病理过程。组织学病变主要为肝脏、心脏、脾脏、气囊等表面增厚,有大量浆液纤维素性渗出物,其中有嗜中性粒细胞和单核细胞浸润;心肌细胞和肾小管上皮细胞颗粒变性,肝细胞脂肪变性和凝固性坏死,脾脏淋巴细胞减少,脑膜水肿充血。证实了鸭疫里氏杆菌主要侵害浆膜和肝脏,引起多发性浆膜炎和肝坏死。Ninety ducklings on 11 day-old age were infected with Rimerella anatipestifer, and slaughtered to observe the pathological chan- ges at hours 12, 24, 36, 48, 60 and 72 after infection. The results showed that there were serous or fibrinous inflammation in pericardium, liver and air sac at 24 hours post-infected, and continued till the end of the experiment. Histopathological examinations showed that the surfaces of liver, heart, spleen and air sac were incrassated with serous-fibrinous exudates in which there were many neutrophils and monocytes. Granular degeneration appeared in myocardium, renal tubule epithelial cells. Fatty degeneration and coagulation necrosis appeared in liver cells. Meninges of the brain had edema changes and hyperemia, and lymphocyte in the spleen decreased. The results demonstrated that R. anatipestifer infection can impair liver and serosa, and thus caused the necrosis of liver and the serositis.

关 键 词：鸭疫里氏杆菌 雏鸭 病理变化 

分 类 号：S858.32[农业科学—临床兽医学]