Further contribution to the H blood group system in pigs

Abstract

Summary The haemolytic reagent allowing direct serological detection of He homozygous pigs was obtained by the immunization of a Landrace sow. Another monospecific reagent prepared from immune serum of a Miniature pig made possible the evidence for a new factor of the H system ‐ He. This factor is genetically controlled by the allele H be . Its frequency in Miniature pigs was 0.099. The H system with alleles H 1 =H a , H 2 = H b , H 3 = H ab , H 4 =H cd , H 5 = H bd , H 6 =H be and H 7 = H‐ continues to be a genetically open system.