本场蛙池由于已经连续多年使用，在夏季高温季节，由于美国青蛙生长代谢旺盛，摄食量大，再加上水温在搭建遮荫棚的情况下仍经常超过29℃，这个季节发病一向比较严重。蛙发病时常常少食甚至拒食，口服药物拌饵投饲难以奏效，单纯使用外用药物效果也不明显，且发病频率有加快的 This frog pool has been used continuously for many years. During the hot season in summer, frogs in the United States often grow more than 29 ℃ due to their strong metabolism of growth and high food intake, together with the temperature of the shelters. . Frequent incidence of frogs often eat or even refuse to eat, oral medication bait feeding difficult to use, simple use of topical drug effect is not obvious, and the incidence of accelerated