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黄鳝在养殖过程中，常发生细菌性腐皮病和烂尾病，影响正常生长，为确保高产、增加收入，现介绍几种防治方法供大家参考。1．腐皮病病理原因由于水质恶化，鱼体抵抗力下降，水生细菌乘虚而入，由腐生转化为寄生，引起皮肤腐烂。症状行动无力，整天将头伸出水面。体表有许多圆形
Eel in the breeding process, bacterial fusiform and rot disease often occur, affecting the normal growth, in order to ensure high yield and increase income, are introduced several methods of prevention and control for your reference. 1. Pathogenesis of phlebitis due to deterioration of water quality, fish resistance decreased, aquatic bacteria take advantage of, by the sap into parasitic, causing skin decay. Symptoms of weakness, will be the first day to reach out to the water. The surface has many circles