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7～8月份正值鱼病发生高峰季节。鱼病防治应贯彻“无病先防、有病早治、防治结合、防重于治”的原则。在生产中,我们发现一些鱼池施用鱼药后出现鱼类死亡的现象,究其原因与施药时间不当、施药量不准、水质和温度的变化等因素有关。 1 鱼池施药应注意的事项 1.1 要做到“对症下药”,根据药物性质和治病部位来决定治疗方法。内脏疾病用内服法,体外和鳃部鱼病,可用浸洗法和全池泼洒法。 1.2 池塘鱼发病率不超过5％,一般不要轻
July to August coincided with the peak season of fish diseases. Prevention and treatment of fish diseases should implement the principle of “disease-free prevention, early treatment of sickness, combination of prevention and treatment, and prevention of diseases”. In production, we found that some fish ponds were killed after fish drugs were applied. The reason was related to improper spraying time, improper spraying rates, changes in water quality and temperature, and other factors. 1 fish pond spraying matters needing attention 1.1 to be “right remedy”, according to the nature of the drug and the treatment site to determine the treatment. Visceral disease with oral administration, in vitro and gill fish disease, available dip and Quanchiposa method. 1.2 The incidence of pond fish does not exceed 5%, generally not light