Breeding method for showa-sanshoku

The invention discloses a breeding method for showa-sanshoku. The breeding method for showa-sanshoku comprises the following steps: (1) young showa-sanshoku stocking; (2) feeding of feedstuff; and (3) selection of the showa-sanshoku: staying black young showa-sanshoku 3 days after the young showa-sanshoku is born, screening for the first time 40 days later, removing bluish yellow young showa-sanshoku, screening for the second time after the young showa-sanshoku grows to be 8-10 cm, and removing the young showa-sanshoku without any white parts, young showa-sanshoku with black spots less than 20% on gray skin and young showa-sanshoku with earthy yellow parts on gray skin. By the breeding method for showa-sanshoku, the quality and the feeding survival rate of the showa-sanshoku can be improved effectively, the feeding period is shortened, the feeding survival rate reaches 82.2% averagely, the rate of hierarchical commercial fishes is high, A-grade commercial fishes account for 72.2% or above, the feeding period