离体抗菌药物敏感性试验简称药敏试验(Antimicrobial Sensitivity Test,AST),是指在离体条件下测定药物抑制或杀灭致病微生物能力的试验。对于由致病微生物引起的水生动物疾病,采用抗菌类水产用兽药治疗是养殖业者常用的方法。抗菌类水产用兽药在控制水生动物细菌性传染病中起到了非常重要的作用。但是,由于养殖过程中不科学地、盲目地滥用抗菌药,导致很多致病性微生物已经产生了较强的耐药性,而各种致病菌耐药性的产生使常用抗菌药物失去药效,已有的抗菌类水产用兽药对水生动 Antimicrobial Sensitivity Test (AST), an in vitro antibiotic susceptibility test, refers to the test for determining the ability of a drug to inhibit or kill pathogenic microorganisms under ex vivo conditions. For aquatic animal diseases caused by pathogenic microorganisms, the use of antimicrobial aquatic veterinary drugs is a common method used by aquacultures. Antibacterial aquatic veterinary drugs play a very important role in the control of bacterial infections in aquatic animals. However, due to the unscientific and blind abuse of antibacterials during the breeding process, many pathogenic microorganisms have already developed strong resistance, and the emergence of various pathogenic bacteria ’antibiotics has caused the commonly used antibacterials to lose their efficacy The existing antibacterial aquatic veterinary drugs on the water lively