Blood Groups and Their Gene Frequencies in the Guinea Fowl

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A type-specific agglutinin (Gf agglutinin) to guinea fowl red blood cells was detected in normal chicken sera. Using the Gf agglutinin, two blood types, Gf and gf types were found in four domesticated strains (strain I-IV) and a wild strain (strain V) of guinea fowl. Results of mating tests indicated that the presence of Gf antigen was controlled by a autosomal dominant allele.Gf agglutinin was found in sera of 143 (83.6%) of 171 chickens examined. Frequencies of Gf agglutinin titers were: 1-2 dilution, 51 individuals (29.8% of the total number); 4-8, 60 (35.1%); 16-32, 28 (16.4%); 64-128, 4 (2.3%).The titers of Gf agglutinin could be kept in refregirator at least for 730 days, but the titers vanished within 116-730 days at 10-30°C room temperature and 116-145 days at 37°C in incubator.The distribution of Gf and gf types in 1020 individuals was as follows; strain I: Gf type 183 (80.3%), gf type 45 (19.7%); strain II: Gf type 68 (10.5%), gf type 578 (89.5%); strain III: Gf type 12 (10.1%), gf type 107 (89.9%); strain IV: Gf type 15 (62.5%), gf type 9 (37.5%) and strain V: Gf type 3, gf type 0.Frequencies of Gf and gf genes were 0.556 and 0.444, respectively, in strain I, 0.054 and 0.946 in strain II, 0.052 and 0.948 in strain III, and 0.388 and 0.612 in strain IV. Frequencies could not be determined in strain V.
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