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药物防治鱼病,是当前鱼病防治的主要手段,防治效果,一般是很理想的。但根据各地防治鱼病的情况,有以下问题,必须十分注意。一是药的用量要适当,肠炎病如用硫酸铜防治,每立方米水体0.5克,如用硫酸亚铁防治,每立方米水体0.2克;如用90%的敌百虫粉剂防治,每立方米水体0.4克;细菌性烂鳃病,如用漂白粉防治,每立方米水体1克,如用漂白粉挂篓,每处不得超过0.3公斤;赤皮病,每立方米水体用漂白粉1克。二是必须先喂食,后撒药。撒
Disease prevention and treatment of fish diseases, is the current prevention and treatment of fish diseases the main means of prevention and treatment of the effect is generally very satisfactory. However, according to the situation of prevention and control of fish diseases in various places, the following problems must be paid great attention to. First, the amount of medicine to be appropriate, enteritis disease such as copper sulfate prevention and control, 0.5 grams per cubic meter of water, such as ferrous sulfate prevention and control, 0.2 grams per cubic meter of water; such as 90% trichlorfon powder control, 0.4 grams of water meters; bacterial gill disease, such as using bleach prevention and control, 1 g per cubic meter of water, such as the basket with bleach, not more than 0.3 kilograms each; red-skin disease, bleach 1 gram per cubic meter of water. Second, we must first feed, after spreading medicine. spread