对鱼类进行免疫接种是预防那些难以控制和经常造成巨大损失的疾病的最佳选择。目前国内外市场上预防细菌性疾病的疫苗包括福尔马林灭活菌苗和油佐剂产品,另外,可以拌饵料投喂的口服疫苗在国外市场上也有出现。市售的疫苗有只抗一种细菌的单价疫苗,也有可抗一种以上细菌的多价疫苗。 Vaccination of fish is the best option for preventing diseases that are difficult to control and often cause huge losses. At present, vaccines for preventing bacterial diseases in domestic and foreign markets include formalin-inactivated bacterins and oil adjuvant products. In addition, oral vaccines that can be fed in mixed food also appear in foreign markets. Commercially available vaccines have monovalent vaccines that are resistant to only one bacterium, and multivalent vaccines that are resistant to more than one bacterium.