1. The primary antibody response to sheep erythrocytes was determined
by haemagglutination test in guinea fowl. The effects of various genet
ic and non-genetic factors on immune response to sheep RBCs in guinea
fowl were also estimated. 2. The immune response to sheep RBCs was nor
mally distributed in guinea fowl with mean titre at 1.534 +/- 0.014. 3
. In guinea fowl, effects on titre values of sire and variety (feather
colour) were significant whereas sex and sex X variety interaction ef
fects were non-significant. 4. The estimate of heritability for immune
response to sheep RBCs in guinea fowl was 0.35 +/- 0.17.