Iraqi Journal of Veterinary Sciences

Abstract

The study was designed to evaluate the immune response of puppies, injected by different protein fractions extracted from protoscolieces, obtained from ovine hydatid cyst. Indirect heamagglutination revealed a remarkable increase in the antibody titers for the immunized groups (A1.5, A3, B1.5, and B3) before and after challenge when compared with the control. Biological variations showed decline in numbers of adult Echinococcus granulosus in the immunized groups when compared with the control. Other variations proved dropping in numbers of the worms within the same immunized groups. Subsequent reductions of cestodes were reported which were 83.8%, 81.3%, 78.2% and 74.6% for the groups A3, A1.5, B3, and B1.5, respectively.