畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (12): 2251-2257.doi: 10.11843/j.issn.0366-6964.2015.12.017

• 预防兽医 • 上一篇    下一篇

山羊源化脓隐秘杆菌的分离与鉴定及自然感染病例的病理学观察

张素辉1,2,付利芝1,2*,朱买勋1,许国洋1,徐登峰1   

  1. (1.重庆市畜牧科学院,重庆 402460;2.重庆市山羊工程技术研究中心,重庆 402460)
  • 收稿日期:2015-04-17 出版日期:2015-12-23 发布日期:2015-12-23
  • 通讯作者: 付利芝,E-mail:446116409@qq.com
  • 作者简介:张素辉(1980-),女,汉族,四川广安人,副研究员,主要从事山羊疫病防控研究与推广
  • 基金资助:

    重庆市基本科研业务费专项(2014cstc-jbky-00108);国家自然科学基金委员会青年基金项目(31402149)

Isolation and Identification of Arcanobacterium pyogenes from Goats and Pathological Observation of Naturally Infected Case

ZHANG Su-hui1,2,FU Li-zhi1,2* ,ZHU Mai-xun1,XU Guo-yang1,XU Deng-feng1   

  1. (1.Chongqing Academy of Animal Sciences,Chongqing 402460,China;2.Chongqing Engineering Research Center for Goat,Chongqing 402460,China)
  • Received:2015-04-17 Online:2015-12-23 Published:2015-12-23

摘要:

为了确诊自然感染疑似化脓隐秘杆菌引起的山羊淋巴结炎病例病原,进行了病原菌分离培养、染色镜检、生化试验和16S rRNA鉴定、动物试验、病理组织切片观察。该病原菌染色镜检为革兰阳性的丝状、杆状或棒状细菌,VITEK2 Compact全自动微生物分析系统鉴定为化脓隐秘杆菌,可信度为88%,16S rRNA鉴定与化脓隐秘杆菌相似性高于99%,判定该病原菌为化脓隐秘杆菌;药敏试验结果显示该菌对β-内酰胺类药物和氟喹诺酮类药物有高度的敏感性,对磺胺类药物有一定的耐药性;病理切片观察到病羊心肌纤维变性,肺和肾小管管腔内有浆液-纤维素性变性,肝有炎性细胞浸润形成肝炎,肩前淋巴结脂肪变性,脾呈浆液-化脓性炎症。结果表明,本次致使山羊淋巴结炎的病原菌为化脓隐秘杆菌,且病羊病理组织学变化为主要脏器的化脓性炎症。

Abstract:

This study aimed to confirm the pathogens from purulent lymph goats infected naturally by Arcanobacterium pyogenes. The pathogens were isolated and cultured,identified by pathological method and 16S rRNA analysis.The result of bacterium analysis showed that the pathogen was Arcanobacterium pyogenes,the credibility was 88% identified by VITEK2 Compact automated microbial analysis system and homology was 99% by 16S rRNA identification.The strain was highly sensitive to β-lactams antibiotics and fluoroquinolones,but resistant to sulfa drugs.Pathological sections showed the sick goat appeared myocardial fibrosis,lung and renal tubular lumen with serous-fibrinous degeneration,inflammatory cell infiltration induced hepatitis,spleen was serous-purulent inflammation and front lymph nodes near shoulders appeared steatosis.Thus we can summary that the pathogen of the goat lymphadenitis was Arcanobacterium pyogenes.Histopathological changes were the main organs suppurative inflammation.

中图分类号: