›› 2010, Vol. 37 ›› Issue (12): 239-241.

• 经验交流 • 上一篇    下一篇

鄂西北地区规模化鸡场H9亚型禽流感抗体水平监测

熊江林1,周华林1,王长义1,谭华祥2,王涛2,王志强2   

  1. (1.襄樊职业技术学院畜禽疾病诊断中心,襄樊 441021; 2.湖北省襄樊正大有限公司,襄樊 441100)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20
  • 通讯作者: 周华林

Monitoring on Virus Antibody Level of Avian Influenza H9 Subtype in Large Scale Henneries of Northwest Hubei Region

XIONG Jiang-lin1, ZHOU Hua-lin1, WANG Chang-yi1, TAN Hua-xiang2, WANG Tao2, WANG Zhi-qiang2   

  1. (1.Husbandry and Poultry Disease Diagnosis Center, Xiangfan Vocational and Technical College, Xiangfan 441021, China;2.Xiangfan Chia Tai Co.Ltd., Xiangfan 441100, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20
  • Contact: ZHOU Hua-lin

摘要: 本试验旨在了解鄂西北地区规模化鸡场鸡禽流感(H9亚型,下同)免疫水平。2007年8月—2010年5月对鄂西北地区65个鸡场接种H9禽流感疫苗20 d后的鸡随机采集血样2311份,应用ELISA方法对血清的禽流感抗体水平进行监测调查。调查结果表明,所检测的2311份血样中,2007年检测11家鸡场共135份血样,104份阳性,阳性率77.0%,强阳性83份,强阳性率61.5%。其中,免疫合格鸡场4家,占受检鸡场36.4%;2008年检测25家鸡场共985份血样,883份阳性,阳性率89.6%,强阳性732份,强阳性率74.3%。其中,免疫合格鸡场21家,占受检鸡场84.0%;2009年检测16家鸡场共433份血样,348份阳性,阳性率80.4%,强阳性277份,强阳性率64.0%。其中,免疫合格鸡场12家,占受检鸡场75%。2010年检测13家鸡场共758份血样,638份阳性,阳性率84.2%,强阳性575份,强阳性率75.6%。其中,免疫合格鸡场11家,占受检鸡场84.6%。2007年禽流感的血清抗体水平较低,相比较,2008—2010年有了明显增加。受检的规模化鸡场仅部分能达到保护水平,且各鸡场的免疫合格鸡比例方面存在较大差异。

关键词: 鄂西北; H9亚型; 禽流感; 抗体

Abstract: The aim was to know about the immune level for AI in Northwest Hubei region. 2311 blood samples were selected from chickens that were inoculated with AIV H9 vaccine in 65 large scale henneries of Northwest Hubei region from Aug 2007 to May 2010. The monitoring and investigation were conducted on serum AI H9 antibody level of chickens by using ELISA method. The investigation showed that in 2007 inspected 135 serums, the positive number was 104, with total positive rate of 77.0%, in which, samples with strong positive antibody were 83, making up 61.5%; in 2008 inspected 985 serums, the positive number was 883, with total positive rate of 89.6%,in which, samples with strong positive antibody were 732, making up 74.3%; in 2009 inspected 433 serums,the positive number was 348, with total positive rate of 80.4%,in which, samples with strong positive antibody were 277, making up 64.0%; in 2010(till May) inspected 758 serums, the positive number was 638, with total positive rate of 84.2%, in which, samples with strong positive antibody were 575, making up 75.6%. The statistic analysis indicated that, of inspected 11 henneries in 2007, there were 4 henneries that had the qualified rate of herd immunity of 75%, accounting for 36.4%; of inspected 25 henneries in 2008, there were 21 henneries that had the qualified rate of herd immunity of 75%, accounting for 84.0%; of inspected 16 henneries in 2009, there were 12 henneries that had the qualified rate of herd immunity of 75%, accounting for 75.0%. The investigation indicated that although strong positive rate of AIV H9 antibody level was relatively low in 2007, the rate had made an obvious increase from Jan 2008 to May 2010. Only partly inspected henneries were in good immune condition, and there were a big difference toward qualified rate of each henneries.

Key words: Northwest Hubei; H9 subtype; avian influenza; antibody

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