农家鱼塘养的鱼和饲养畜、禽一样 ,也会有发病的可能。对于可能发生的鱼病 ,选用适当的药物在鱼病流行季节进行预防和治疗 ,是控制和减少鱼病发生、避免造成重大经济损失的重要途径。但是有些药品在市场上不容易买到 ,必须到较远的城镇去买 ,既不方便 ,又不及时。因此 ,对于养 Farming fish ponds and raising livestock, poultry, will also have the possibility of onset. For possible fish diseases, the selection of appropriate drugs for prevention and treatment in the season of fish epidemic is an important way to control and reduce the occurrence of fish diseases and avoid causing significant economic losses. However, some medicines are not readily available on the market and must be purchased in faraway cities and towns. They are neither convenient nor timely. Therefore, for raising