经常有些养鱼户忧伤地谈到,他们所饲养的鱼患病后很难治好,花钱用了很多药,眼睁睁地看着自己辛勤饲养的鱼一天天死去,这是什么原因呢? 首先,当前发生鱼病仍是人为因素居多。如鱼池不彻底清塘消毒,清除淤泥。盲目提高放养密度。过分强化投饲以期达到 Often, some fish farmers talk sadly that the fish they are raising are hard to cure after they have their illness, spend a lot of money and watch their daily die of hard-working fish. What is the reason? First of all The current occurrence of fish diseases is still mostly human factors. Such as fish ponds are not completely clear pond disinfection, remove silt. Blindly raise the stocking density. Excessive feeding in order to achieve