METHOD OF PREPARING VACCINE AGAINST HAMBORO DISEASE

摘要

FIELD: veterinary. SUBSTANCE: method involves infection of duck embryos from industrial herd by 9-10-days incubation followed by selection of virus-containing material, control for sterility, activity and lyophilization. Prepared vaccine shows expressed immunogenic activity and able to form active immune protection against Hamboro disease in chickens with high level of maternal antibodies. EFFECT: improved method of vaccine preparing.