Further contribution to the H blood group system in pigs

Abstract

The haemolytic reagent allowing direct serological detection of Hc 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 d e l e H6e. Its frequency in Miniature pigs was 0.099. The H system with alleles Hi =Ha, H2 = Hb, H3 = H u b , H' = H c d t Hs = H b d , H6 = Hbe and H7= Hcontinues to be a genetically open system.

H blood group genotypes and expression of A and 0 antigens in pigs

“…In this semi-inbred line, the interpretation of the results is simplified by the smdler number of alleles of H system (owing to inbreeding) and also by the possibility of the direct serological detection of Hcd homozygotes (Hojng, 1973). Among 328 offspring of 39 families (8 different mating patterns), 124 were H-negative, 106 were Hcd-heterozygous and 108 had the genotype H c d H c d .…”