The method of selecting koi in that year and measuring the score of your koi.

Last Updated: 2024/12/23, In the 37 year of Showa, Japan (1962), the first evaluation meeting of koi products was held in Niigata (xi) Prefecture. The examination standards used at that time were summarized and spread by Kawakami, Hiroi, Kwan and Dalong at the same time. Table 1 states that it applies only to sexually mature adults.