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夏季6～7月份，水温达到18～28℃时，正是鳜鱼摄食活动最强，最生长最快的季节，同时也是各种传染性疾病暴发季节。对于鳜鱼来说，内服药物很难起作用，因为鳜鱼只吃活鱼，况且在病情严重时，鳜鱼已经失去食欲，即使是特效药也不能达到理想的治疗效果。因而在鳜鱼疾病防治方法
In summer from June to July, when the water temperature reaches 18 ~ 28 ℃, it is the strongest catfish feeding activity, the fastest growing season, but also the outbreak of various infectious diseases. Oral medications are very hard for catfish because catfish eat only live fish, and catfish have lost their appetite when conditions are severe and even ideal ones can not achieve the desired therapeutic effect. Thus in the catfish disease prevention and control methods