鱼类病的七种防治法１、挂袋法：此法通常在未发病或初发病病情较轻时，在食台、食场内使用，尤其在面积比较大的鱼池和塘堰中使用较多。２、浸泡法：此法通常是在鱼种转池或运输前后使用，该法既可节省药物，而且不影响池中浮游生物生长。３、遍洒法：这是外用药防治鱼病... Seven kinds of fish disease prevention and control method 1, the bag method: This method is usually in the absence of disease or initial disease when the disease is mild, in the food station, food court, especially in the larger ponds and pond weir use more . 2, soaking method: This method is usually used in fish ponds or transport before and after the use of this method can save drugs, but does not affect the growth of plankton in the pool. 3, Sprinkle method: This is the prevention and treatment of fish disease with external medicine ...