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一、清塘消毒。冬天成鱼干池起捕后,最好亩用75公斤生石灰或清塘净2.5公斤全池泼洒进行池塘消毒,鱼种下塘前还应先用3％的食盐水浸洗10～20分钟,防止带病入池,草鱼种放养前则必须进行疫苗注射以增强其抗病能力。 二、选好鱼种。投放的鱼种要壮、大、无病伤,一般青、草、鲢、镛鱼体长要在17厘米左右,鳊、鲤鱼12厘米左右,鲫鱼7厘米为好。 三、合理投放。投放的鱼种及密度应依塘水肥力而定,肥水鱼塘可投放
First, clear pond disinfection. Into the winter into a dry pond after fishing, the best mu with 75 kg of lime or clear pond net 2.5 kg Quanchiposa pond disinfection, ponds should be washed with 3% salt water before 10 to 20 minutes, Prevent sick into the pool, grass carp stocking before vaccination must be carried out to enhance its resistance to disease. Second, choose a good species. Put the species to be strong, big, non-injured, the general green, grass, silver carp, bighead carp body length to about 17 cm, 鳊, carp 12 cm, 7 cm as well. Third, reasonable delivery. Fish species and density should be set according to the fertility of ponds, fertile fish ponds can be put