草鱼“三病”(细菌性烂鳃病、肠炎病、赤皮病)并发症近年来在我国部分地区有重新抬头的趋势,必须采取有力的防治措施,避免给水产养殖造成损失。笔者总结各地的经验,并结合自己的实践,介绍防治草鱼“三病”并发症的二十种有效方法,供生产者参考应用。1 每50kg草鱼,每天用90％晶体敌百虫50g,乐 Grass carp “three diseases” (bacterial gill disease, enteritis disease, red skin disease) complications in recent years in some parts of China have the tendency to regain the head, we must take effective control measures to avoid losses to aquaculture. The author summarizes the experience of various places, combined with his own practice, introduced the prevention and treatment of grass carp “three disease” complications of 20 kinds of effective methods for reference for the producer application. 1 50kg grass carp per day with 90% crystal trichlorfon 50g, music