冬放鱼种消毒一般采用药液浸洗法，即将鱼放在较高浓度的药液里，经过适当时间的浸洗，将鱼体表的病原体杀死。常用消毒药物的浸洗浓度和时间如下：#、漂白粉每立方米水体加入#$克漂白粉+含氯-$),，搅拌均匀后放入鱼种浸洗。当水温在#$%#.时浸洗“$%-$分钟，可防治细菌性皮肤病 Winter fish disinfection generally liquid dip method, the fish will be on the higher concentration of the liquid, after an appropriate time of immersion, the pathogen killed fish body surface. Commonly used disinfectant dipping concentration and time are as follows: #, bleach per cubic meter of water to join # # grams of bleach + chlorine - $) ,, Stir into the species dipped. When the water temperature in # $% #. Dipping ”$% - $ minutes, can prevent bacterial skin disease