INFLUENCE FEATURES OF EXOMETABOLITES OF CAT TAPEWORM CYSTICERCUS ON THE PROLIFERATIVE ACTIVITY OF L929 CELLS

Roach is an important commercial species that is caught in large numbers in lake Ladoga. All river fish are classified as "conditionally fit" and must be subjected to sufficient cooking for consumption. This is primarily due to the fact that fish, including roach, can be a source of infection and a factor in the transmission of pathogens of helminthiasis in humans and domestic animals. The purpose of the work is to study the fauna of roach helminths of lake Ladoga from commercial catches. Parasitological research was conducted using generally accepted methods. All fish were 6-7 years old. Sexual structure of the sample: females - 6 specimens (40%), males - 9 specimens (60%). During the autopsy, it was found that 13 fish had a normal state of internal organs, 2 fish were infected with ligules and did not had adipose tissue. 13 parasite species were found: class Monogenea (Dactylogyrus vistulae, Diplozoon sp.), class Trematoda (Diplostomum sp., Tyladelphys sp., Posthodiplostomum cuticola, Bucephalus polymorphus, Bunodera luciopercae, Paracoenogonimus ovatus), class Cestoda (Proteocephalus torulosus, Ligula intestinalis), class Nematoda (Rhabdochona denudata, Raphidascaris acus), and class Acanthocephala (Acanthocephalus lucii). Larvae infestation of Posthodiplostomum cuticola and Ligula intestinalis leads to a decrease in the commodity qualities of roach. Paracoenogonimus ovatus may have medical significance. All river fish for food and for use as animal feed must be subjected to sufficient cooking for decontamination.

lake Ladoga, roach, parasitofauna, parasites, helminths, epidemiology, fish