METHOD OF PREPARING INACTIVATED POLYVALENT VACCINE AGAINST NECROTIC ENTERITIS AND COLIENTEROTOXICOSIS AMONG PIGS

摘要

This method is easily implemented in industrial conditions, and the extracted vaccine is, to a certain degree, immunogenic and harmless. The method is implemented with the participation of cellular crops from stamps of Escherichia coli (registered in National Bank for Industrial Micro organisms and Cellular Crops under No. 2049-2054), and Clostridium perfigens (registered in National Bank for Industrial Micro organisms and Cellular Crops under No. 2046-2048).