B‐complex Genetic Control of Immune Response to Hsa, (T,g)‐a–l, Gt and Other Substances in Chickens

Immune response to poly-(L-tyrosine-L-glutamic acid)-poly-D,L-alanine-poly-L-lysine (T,G)-A--L), human serum albumin (HSA), and (L-glutamic acid50, L-tyrosine50)n (GT) was found to be linked to the B complex in an outbred line of Leghorns segregating for the B1, B2, and B19 alleles. Birds of the blood group genotypes B1B1, B2B2, and B19B19 were low, intermediate, and high responders, respectively to either (T,G)-A--L or HSA. Response to GT, however, differed, with the B2B2 genotype being the only responder. No real genotype differences in immune response to DNP-congugates and sheep red blood cells (SRBC) could be detected.