Abstract
Blood groups and serum types in 508 random mongrel Japanese dogs (Canis Familiaris var japoriicers Temminck & Schlegel) were studied serologically for the purpose of applying to the pedigree registration. Five different typical specific antigens were demonstrated in the blood corpuscles by two dissimilar immune anti-serums, and were called C1, C2, D1, D2, and D1D2 respectively in the order of their demonstration. The frequency of blood groups were shown in the table 2, 3, and table 4. A naturally occurring heterohaemagglutination (a', b') with human blood corpuscles were found in dog sera correspond to anti-A, anti-B haemagglutination in normal human serums. Therefore, four different types were demonstrated in dog sera and were called O', a', b' and a', b' in the order of their demonstration, and the a' type sera showed a strong agglutination reaction with human blood corpuscules, but b' type sera showed a weak reaction.
