Abstract
The species composition of nematodes found during necropsies of cattle and small cattle in Primorsky Krai (Russian Far East) was determined. Mecistocirrus digitatus, Bunostomum phlebotomum, Cooperia punctata and Ostertgia ostertagi were found in cattle. Trichostrongylus colubriformis was registered in sheep and Teladorsagia circumcincta was found in goats. Small cattle had low rates of intensity and extensity of invasion, apparently, because of antiparasitic treatment performed by animal owners. The intensity of invasion in cattle reached 827 specimens. All nematode species found in this study were previously registered in Primorsky Krai. However, helminthological studies of goats in Primorsky Krai have been conducted for the first time. Thus, the registration of T. circumcincta is the first detection of this parasite in goats in Primorsky Krai. Since two of the detected nematodes (T. colubriformis and T. circumcincta) were repeatedly recorded in humans in several countries, these species deserve a special attention as potential causative agents of zoonosis.
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