Hemolytic anemia (destruction of
RBCs) due to varied hereditary defects are seen more so in certain breeds,
including English Springer Spaniels and less commonly Cocker Spaniels (phosphofructokinase [PFK] deficiency), and in Basenjis, Beagles, West Highland White Terriers, Cairn Terriers, Miniature Poodles, Toy Eskimos and Dachshunds (pyruvate kinase [PK] deficiency).