The recommendations are prepared taking into account the monitoring of data of domestic and foreign scientists, as well as the results of their own long-term studies. They describe: morphology and biology of pathogens, environmental epizootological features, pathogenesis and clinical picture, diagnosis, prevention and therapy of the most common helminthiasis of cattle in the conditions of farms of dairy specialization of the Vologda region .. The recommendations are intended for veterinary specialists, managers and employees of livestock farms, complexes, farms and veterinary laboratories, as well as for use in the educational process in specialty 36 . 05. 01 "Veterinary Medicine" .