Abstract: The studies were conducted to evaluate a comparative efficacy of broad – spectrum anthelminthics with an immunomodulatory effect used for animal dehelminthization on the basis of an epizootic situation in helminthiasis and protozoasis of wild artiodactyl animals of the northern forest subzone of Belarus. Helminthological and protozoological investigations were based on the methods generally accepted in parasitology. The data obtained show infestation of a wild boar with 14 species of helminths belonging to four classes (Trematoda, Cestoda, Nematoda, Acanthocephala); moose – with 13 helminth species from three classes (Trematoda, Cestoda, Nematoda) and one species of Eimeria from Sporozoa class; European roe deer – with 11 helminth species from three classes (Trematoda, Cestoda, Nematoda) and 1 species of Eimeria from Sporozoa class. In terms of species the helminths belonging to Nematoda class predominate in helminthocenosis. The most widespread helminthosis in wildespread helminthosis in wild boartis Metastrongylosis, in moose is Mecistociriosis, in European roe deer is Trichostrongylidosis. Four preparations for dehelminthization of wild animals under laboratory and field conditions were tested. They were «22% fenbendazole granulate», «20% tetramizole granulate», «Polyparacid», «Pentavet». It was established that Polyparacid and Pentavet having and immunostimulating effect are more effective than «22% fenbendazole granulate» and «20% tetramizole granulate» having an immunosuppressive.Abstract: The studies were conducted to evaluate a comparative efficacy of broad – spectrum anthelminthics with an immunomodulatory effect used for animal dehelminthization on the basis of an epizootic situation in helminthiasis and protozoasis of wild artiodactyl animals of the northern forest subzone of Belarus. Helminthological and protozoological investi...Show More