Аннотация
In article the data on a degree of infection by parasitosis of fishes of separate reservoirs of fishery value of the Central and Northern Kazakhstan are resulted. Fish sampling was carried out from separate reservoirs of Akmola, Karaganda and North Kazakhstan regions. In total 257 specimens of fish were examined. In Akmola region tench is infested with Capillaria spp. with EI 25%, silver carp - oocysts of Eimeria spp. with EI 8.3%, Goussia carpelli (oocysts of coccidia) - 20%, Ligula intestinalis - 10%; perch - metacercariae Diplostomum spp. with EI 33.3%, bream - metacercariae Opistorchis spp. with EI 14.2% and oocysts of Eimeria spp. with EI 10%, tench with metacercariae Opistorchis spp. with EI 25%. In the Karaganda region, pike perch is infested with oocysts of Eimeria spp. with EI 25% Camallanus spp. – 25%, silver carp - oocysts of Eimeria spp. with EI 33.3%, Diplostomum spp. - 16.6%, perch - oocysts of Eimeria spp. with an EI of 16.6%. In the North-Kazakhstan region, O.felineus metacercariae with EI 25% were registered in tench, Ligula intestinalis with EI 16.6% in silverfish, Philometroides lusiana carp with EI 50%.