›› 2009, Vol. 36 ›› Issue (5): 203-205.

• 经验交流 • 上一篇    下一篇

肉鸡源肠炎沙门氏菌的分离与鉴定及生物学特性观察

丁孟建,高继业,唐妤,汪敏,李继祥   

  1. (西南大学荣昌校区动物医学系,重庆 402460)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-05-20 发布日期:2009-05-20
  • 通讯作者: 李继祥

The Isolation, Identification and Biological Characteristics Research of Salmonella enteritidis from Broiler

DING Meng-jian, GAO Ji-ye, TANG Yu, WANG Min, LI Ji-xiang   

  1. (Department of Veterinary Medicine, Rongchang Campus, South West University, Chongqing 402460, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-05-20 Published:2009-05-20
  • Contact: LI Ji-xiang

摘要: 自2007年9月以来,重庆某肉鸡养殖场的15~30日龄肉鸡流行一种以纤维素渗出性心包炎、气囊炎和肝周炎为主要特征的疾病。为探索该病病因及制定有效防治措施,笔者对其病原菌进行了分离鉴定及生物学特性观察。利用SS营养琼脂平板分离,经生化及PCR鉴定出26株肠炎沙门氏菌。分离菌株能将试验鸡、鸭及小鼠致死,并能复制出与临床表现一致的病例。药敏试验结果显示,26株分离菌对阿莫西林、氧氟沙星等常用抗菌药物广泛耐药。以CQ0709株制备灭活菌苗免疫5日龄鸡后15 d,及12日龄注射特异性蛋黄抗体后24 h对人工感染均有很好的保护力。以上结果表明,耐药性肠炎沙门氏菌是危害重庆某肉鸡养殖场肉鸡的病原。

关键词: 肉鸡; 肠炎沙门氏菌; 药敏试验; PCR

Abstract: In broiler-fryer industry of Chongqing, there has a disease which harmed 15 to 30 days old broilers since September 2007. The disease occurred as an acute septicemia characterized by fibrinous perricarditis, perihhepatitia, and airsacculitis. In order to search for the etiopathogenisis and the means of cure, we isolated and identified the pathogenic bacterium. In the study, SS nutrient agar was used, and 26 strains Salmonella enteritidis (SE) were isolated and identified by biochemistry and PCR. The SE strains had pathogenicity for chicken, ducklings and mice. Drug susceptibility test for 26 strains showed their resistance to Amoxicillin, Ofloxacin, and so on. The chicken immunized with CQ0709 strain inactivated vaccine or injected with special IgY can against artificial challenge. The results showed drug resistance SE infection had been a problem in the intensive production of broiler in Chongqing.

Key words: broiler;  Salmonella enteritidis; drug susceptibility test; PCR

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