The anamnestic response of Trionyx sinensis immunized with bacterin T3

It was demonstrated that soft..shelled turt le, Trionyx sinensis, with bacterin T3 had anamnest ic response that was situated between the f ish and mammal. It possessed these characters: ( 1) the anamnestic and primary response differed significantly in peak stage of IAT of soft..shelled turtle, and its ratio reached two or so; ( 2) antibody of primary response produced quickly , which got to the highest level on about the 16th day after the second immunization, but its disappearing speed was slower than producing one; ( 3) the producing rate of IAT of anamnestic response went up faster than that of the primary, but the dropping rate was slower.