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十七、罗非鱼越冬常见病防治技术 罗非鱼在生长季节,一般疾病比较少。而在越冬季节,由于越冬池面积较小,放养密度较大,水质相对较差,水温偏低,再加上处于不太活动与少摄食的情况下,罗非鱼就容易生病。 在越冬期间鱼病防治要采取以预防为主、防治结合的原则。一般每隔10～15天预防一次,每次每立方水用含氯量为30％的漂白粉1克或用0.5克硫酸铜和0.2克硫酸亚铁合剂,加水溶解后,均匀泼洒全池。
Seventeen, common disease prevention and treatment of winter overwintering tilapia Tilapia in the growing season, the general disease is relatively small. In the wintering season, the tilapia is susceptible to illness due to its small area, large stocking density, relatively poor water quality and low water temperature, together with less active and less food intake. In the winter during the prevention and treatment of fish diseases should take the principle of prevention, combination of prevention and control. Generally every 10 to 15 days to prevent once each cubic water with 30% chlorine content of bleach 1 g or 0.5 g of copper sulfate and 0.2 g of ferrous sulfate mixture, dissolved in water, sprinkle the whole pool.