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7、“防”“防”是指做好鱼塘的各项预防工作,防止各种事故发生,给养鱼生产提供安全保障。首先要做好防病工作。精养鱼塘中鱼的放养密度大,投饵、施肥多,因而鱼塘中病菌及寄生虫极易繁生,使鱼得病,给鱼塘高产带来威胁。因此,只有做好鱼病预防工作,才能保证实现高产。常用的方法是定期往水中泼洒漂白粉。漂白粉需先用少量水化开溶解后,再逐次对水泼洒,水深2米左右的鱼塘,用水1公斤即可。其次是做好防汛工作。由于鱼
7, “anti” “anti” refers to the prevention of fish ponds do a good job to prevent accidents, to provide fish production safety and security. First, we must do a good job in disease prevention. Intensive fish pond stocking density, feeding, fertilization and more, so the ponds and pathogens easily parasitic diseases, so that the fish is sick, giving the high yield of fish ponds threaten. Therefore, only by doing a good job in fish disease prevention can we ensure high yields. Commonly used method is to regularly spill bleach on the water. Bleach to be dissolved with a small amount of hydration, and then spilled water, water depth of about 2 meters of fish ponds, 1 kg of water can be. Followed by good flood control work. Because of the fish