采用平板抑菌法,试管抑菌法测定渔家乐A型对鱼类细菌病的抑制效果。结果表明:该鱼药对草鱼赤皮、肠炎、烂鳃及鲢鱼暴发病等细菌性鱼病具有明显的抑菌效果,在10ppm浓度时,平均抑菌范围达35mm以上。最低有效抑菌浓度为0.1ppm。且稳定性好,置30天后抑菌效果无明显下降。 The inhibitory effect of Yujiale A on fish bacterial disease was tested by antibacterial test in vitro and antibacterial test in vitro. The results showed that the fish medicine had obvious bacteriostatic effect on bacterial fish diseases such as red skin, enteritis, rotten gills and silver carp outbreaks. At the concentration of 10ppm, the average bacteriostasis range exceeded 35mm. The minimum effective inhibitory concentration of 0.1ppm. And good stability, home antibacterial effect after 30 days no significant decline.