Heat-proof freeze-drying protective agent for live vaccine for hog cholera

The invention belongs to the technical field of vaccines and particularly relates to a heat-proof freeze-drying protective agent for a live vaccine for hog cholera. The heat-proof freeze-drying protective agent is prepared from raw materials in percentage by weight as follows: 1%-3% of inositol, 0.5%-2% of adonitol, 5%-15% of sucrose, 0.5%-2% of arabic gum, 0.05%-0.2% of sarcosine, 0.01%-0.1% of vitamin C and the balance of injection water. The activity of hog cholera antigen can be effectively protected, the freeze-drying protective agent has a heat-proof protection function, can be used for cold storage and transportation, has good reconstitution properties and does not contain allergic ingredients such as protein, gelatin and the like, side reactions of the vaccine are effectively reduced, resources of raw materials are wide, the preparation method is simple, and the freeze-drying protective agent is low in comprehensive cost and easy to popularize. 本发明属于疫苗的技术领域，特别涉及种猪瘟活疫苗的耐热冻干保护剂；它是由下述重量份数的原料配制而成：1%-3%肌醇、