锻炼鱼体增强体质鲢鳙鱼苗放养三天后,每天上午鱼苗浮头下沉后,人拉牛下塘慢行;如没牛,就用人工轻拖泥箕,赶鱼急游,直到鱼苗有轻微浮头为止。每隔一个月左右进行一次,每次锻炼2—3天。直到冬季前气温低或人不能下塘时停止。经过这样锻炼的鱼苗,由海花育成7—8朝的鱼种,成活率可达70—90％以上。 Exercise fish to enhance the body of silver carp and bighead carp and bighead carp Three days after the stocking, the fish fry floating head sink every morning, people pull cattle under the pond slow; if no cattle, artificial muddy pan, fish emergency tour until the fry have a slight floating head until. Every other month or so, each exercise 2-3 days. Until the winter before the temperature is low or people can not stop under the pond. After this exercise fry, fish breeding by the sea flower 7-8 toward the survival rate of up to 70-90%.