crude protein not less than 50% ,ash not more than 30%, moisture not more than 10%,protein not less than 50%, moisture not more than 10%, ash not more than 32%, fat not more than 12%, phosphorus content of not more than 4%, calcium content of not more than 8%, volatile basic nitrogen / tvbn: 150mg / g, protein absorption rate of not less than 85 % , methionine not less than 0.55% ,lysine not less than 2.8%.