草鱼烂鳃病。每亩鱼塘取菜油800g,放入锅内煮沸,再把250至300g生姜切成薄片,倒入锅内煮熬15至20分钟后捞出,装入桶中并倒入适量的水充分搅拌,然后全池遍洒,每天1次,连续2次即可治愈。鱼烂鳃。(1)浸洗法。用大黄2kg、水200kg,熬煎成1%的大黄药液,冷却后将病鱼放入其中,浸泡46分? Grass carp rotten gill disease. Take 800g of vegetable oil per mu of fish ponds, boil it in the pot, then slice 250 to 300g of ginger into the pot, boil it for 15 to 20 minutes and remove it, put it into the bucket and pour in the right amount of water , And then sprinkle all over the pool, 1 day, 2 times in a row can be cured. Grouper (1) dip method. With rhubarb 2kg, water 200kg, boil 1% rhubarb decoction liquid, the sick fish will be placed in the cooling, soaking 46 points?