Abstract
Infections of bovines by H. placei and H. contortus can cause prejudice to production. Therefore, this study aims to evaluate the infectivity of H. contortus for bovines and compare its pathogenicity to H. placei. To achieve that, 14 calves created and kept free from contact with helminthes will be used, distributed in four groups: GI - four calves inoculated with H. placei infecting larv…