Serological Studies on Oil Sardine (Sardinella longiceps) and Mackerel (Rastrelliger kanagurta)

Abstract

An antiserum was raised ·in a rabbit against O panel red  cells of mackerel. The erythrocytes of oil sardine and mackerel  were tested against human blood typing sera anti A and B  and also the test serum of rabbit which revealed the presence  of antigens A and B. In addition, an antigen common to  both the fishes and human A, B and O panel red cells was noted but not identifiable. The blood group B did not manifest itself clearly either in oil sardine or mackerel. The blood groups A, AB and O indicated the existence of genetically  different groups of oil sardine and mackerel. Isoagglutinin  tests revealed the presence of a reciprocal relationship with antigens A and B in both these fishes.