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| : Ivanovitch Inbreeding coefficient: 0.00% (4) - 0.00 % (8) Ancestor loss coefficient: 100.00 % (4) - 100.00 % (12)   | : Bayard Russian Blue (RUS) | : King Vladimir Russian Blue (RUS) | : Olga Russian Blue (RUS) | : Donna Roma Russian Blue (RUS) | ||||||||||||||
| : Mousmee British shorthair blue (BRI a) | ||||||||||||||||||