Origin(Nihon-ichi)

Nihon-ichi belongs to Aojuku strain. Nihon-ichi was selected by Yokoyama Kiyojiro of Ynagawa-machi, Fukushima Prefecture. Because Nihon-ichi won first prize at the National Silkworm Eggs Competitive Show in the 8th year of Meiji(1875), it was named "Nihon-ichi"(it means "the greatest in Japan" in Japanese). The largeness of cocoon was 330 grains/Sho(1.8l). Weight of Cocoon Filament was 13 Monme(48.75g)/Sho(1.8l). (From "Dainihon-sanshi")

References
1) Eikichi HIRATSUKA(1961) : History of Modern Silkworm Race Breeding, Dainippon Silk Foundation, Silk Science Research Institute, pp236
2) Eikichi HIRATSUKA(1969) : Genealogy of Japanese Silkworm Races for Practical Use, Dainippon Silk Foundation, Silk Science Research Institute, pp335