Frequencies of blood types A, B, and AB in non-pedigree domestic cats in Beijing

Lan Zheng, Yougang Zhong, Zhensheng Shi, Urs Giger
Veterinary Clinical Pathology 2011, 40 (4): 513-517

BACKGROUND: Frequencies of blood types A, B, and AB in domestic cats vary geographically and among breeds and have not been reported in China.

OBJECTIVE: The purpose of this study was to survey the frequency of blood types in domestic cats in the Beijing area.

METHODS: A total of 262 cats from the city of Beijing were blood-typed using a standard tube agglutination assay. All cats were nonpedigree domestic shorthaired and longhaired cats; purebred cats were excluded. Serum obtained from type-B cats and a lectin (Triticum vulgaris) solution served as anti-A and anti-B reagents, respectively. The presence of alloantibodies was also determined in some cats.

RESULTS: The frequency of blood types was 88.2% type A, 11.4% type B, and 0.4% type AB. The tube assay resulted in 3+ to 4+ agglutination reactions with either the anti-A or anti-B reagents. The 1 type AB sample showed 3+ agglutination with both anti-A and anti-B reagents; the plasma of that sample did not react with either type-A or type-B RBCs. Tested type-B cats had strong anti-A antibodies.

CONCLUSIONS: The frequency of blood type B in the Beijing area was relatively high and similar to that reported for other Asian countries and Australia. Blood-typing is recommended to match donors and recipients before transfusion therapy and planned matings to avoid hemolytic transfusion and neonatal isoerythrolysis reactions, respectively, due to blood-type incompatibility.

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