在投放鱼种时,应利用药物浸洗鱼体,杀死寄生在鱼鳃和体表的寄生虫和病菌。现将鱼种消毒技术和注意事项介绍如下: 1.漂白粉溶液:每50公斤水对入漂白粉0.5克,水温10℃～15℃时,每次给5.0～7.5公斤鱼种浸浴20～25分钟,可防治细菌性皮肤病和烂鳃病等。 2.敌百虫溶液:每50公斤水对入90％晶体敌百虫(先将敌百虫用热水溶解)0.25克,每次浸洗鱼种7.5公斤,时间10～15分钟,能杀死寄生在鱼鳃和体表的三代虫、指环虫、车轮虫等,对预防寄生虫病有很好的效果。 3.用2.5％～5.0％的食盐水浸洗5～20分钟,可防治烂鳃 In feeding species, the use of drugs should be dipping fish to kill parasites and parasites in fish gills and body surface parasites and germs. Fish disinfection techniques and precautions are introduced as follows: 1. Bleach solution: every 50 kg of water into the bleach 0.5 grams, the water temperature 10 ℃ ~ 15 ℃, each to give 5.0 to 7.5 kg of fish immersion 20 to 25 minutes , Can prevent bacterial skin diseases and rotten gill disease. 2. Trichlorfon solution: every 50 kg of water into the 90% crystal trichlorfon (trichlorfon first dissolved with hot water) 0.25 grams, each immersion species 7.5 kg, the time 10 to 15 minutes to kill Dead parasites in the fish gills and body surface of the three generations of insects, finger worm, car worm, etc., to prevent parasitic diseases have a good effect. 3. With 2.5% ~ 5.0% salt water immersion 5 to 20 minutes, can prevent rotten gills