鸭大肠杆菌自家铝胶灭活苗的制备及质量检验

目的]为有效控制鸭大肠杆菌病的流行提供参考依据.方法]利用分离自泰州某规模化养鸭场的大肠杆菌菌株TZY1作为菌种,制备鸭大肠杆菌铝胶灭活苗,并进行相应的质量检验.结果]通过无菌检验、安全检验和动物保护力试验发现自制疫苗无外源性微生物污染,对雏鸭安全性好.对雏鸭的攻毒试验结果表明制备疫苗的免疫保护率达100％,该疫苗的免疫剂量为0.5ml.田间试验结果表明免疫保护率达95.1％.结论]成功制备了鸭大肠杆菌铝胶灭活苗.

Preparation and Quality Examination of Self-prepared Aluminum Hydroxide Inactivated Vaccine against Escherichia coli of Duck

Objective ] The research aimed to provide reference basis for controlling the prevalence of duck colibacillosis effectively. Meth-od ] TZY1 strain of Escherichia coli separated from a large-scale duck farm in Taizhou was used to prepare the aluminum hydroxide inactivatedvaccine against Escherichia coli of duck. And its quality indices were examined. Result] The results of sterilization test, safety examinationand animal protection test showed that the self-prepared vaccine wasn＇ t polluted by exogenous microorganisms and it had good safety to duck-lings. The results of challenge experiment on ducklings showed that the immune protection rate of the self-prepared vaccine reached 100% andits immunization dose was 0.5 ml. The results of field experiment shoed that the immune protection rate was 95.1%. Conclusion] Aluminumhydroxide inactivated vaccine against Escherichia coli of duck was successfully prepared.