Heat-resistant protective agent for swine fever live vaccine, and preparation method and application thereof

The invention relates to the field of veterinary biological products, and particularly discloses a heat-resistant protective agent for a swine fever live vaccine, and a preparation method and application thereof. The heat-resistant protective agent for the swine fever live vaccine is characterized by being prepared by mixing a solution A and a solution B in a volume ratio of 1: 1, wherein the solution A consists of, by weight, 4-6% of polyvinylpyrrolidone, 1-2% of tryptone, 1-2% of trehalose, and the balance of water; and the liquid B is prepared from, by weight, 1-2% of L-sodium glutamate, 6-8% of glucose, 1-2% of polyethylene glycol, 0.1-0.3% of glycine, 0.1-0.3% of lysine, 0.1-0.3% of arginine, and the balance of water. The product disclosed by the invention is stored for 24 months at 2-8 DEG C, and the virus content is not changed, so that the problem that the swine fever live vaccine cannot be stored and transported for a long time at 2-8 DEG C is solved. 本发明涉及兽用生物制品领域，特别公开了一种猪瘟活疫苗耐热保护剂及其制备方法与应用。该猪瘟活疫苗耐热