冬季是捕捞收捞期，也是进行清塘 的黄金时间，清培能灭病菌、寄生虫和 清除野杂鱼，减少来年养鱼生产中病虫 害发生，是养鱼生产中不可少的工序。 由于现在的清塘药物种类多，较难正确 掌握消效期，常有清塘后入养鱼种大量 死亡的现象发生。为减少不必要损失， 正确掌握清塘药 Winter fishing harvest period, but also the prime time for clear ponds, pest control bacteria, parasites and removal of wild trash fish to reduce fish and peanut production in the coming year production of fish is an essential process. Due to the wide variety of Qingtang medicines nowadays, it is difficult to correctly understand the period of expiration, and it is common for many species of fish to die after the Qingtang crop to die. In order to reduce unnecessary losses, the correct control of clear pond medicine