一、壮苗下塘。下塘前,选择体质健壮,规格整齐,游动活泼的良种鱼苗下塘,方可提高成活率。 二、安全下塘。鱼苗下塘前必须严格检查清塘药物是否已经彻底失效,可先试放几十尾鱼苗入塘内的网箱,观察一昼夜,看鱼苗活动、采食情况有无异常,如出现焦燥 A strong seedlings under the pond. Under the pond, choose a strong physique, tidy specifications, lively breeding seedlings under the pond, can only improve the survival rate. Second, under the security pond. Fish ponds under the pond must be strictly checked before the clear pond medicine has been completely invalid, you can try dozens of fish fry into the pond cage, observe a day and night, watching the fry activities, eating abnormalities, such as dry