2008 Volume 77 Issue 2 Pages 2_159-2_165
Based on the strategy for silkworm breeding in the former report (Shirota and Aso under consideration), the parental silkworm races of N12, N54, C32, and C66 have been under evaluation for nine years. The newly developed silkworm race, N12EN54~C32EC66 (Matsuoka-Hime), has excellent characteristics for cocoon filament fineness and has been offered to the silk industry in Japan.