Author: Najmiddinov, Eldor; Rasuljonov, Adhamjon; Rahimov, Javohir

Annotation: The purpose of our research work in this article is to systematically study the species composition of helminths in some fish in the water bodies of the Fergana Valley and to study the process of extensive and intensive damage to fish. During the research conducted in 2018-2019, blackfish (Schizothorax intermedius) 42 pieces, silver heeler (Carassius auratusgibelio) - 47 pieces, carp (Cyprinus carpio) - 68 pieces, white carp ( Ctenopharyngodon idella)- 39 pieces, the amount of fish was examined by the method of slitting. 9 types of helminths belonging to 2 types, 3 classes, 6 families, 9 families, and 9 genera were recorded in the fish in the water reservoirs of the Fergana Valley. 3 of them belong to the class of cestodes (Cestoda), 2 to trematodes (Trematoda) and 5 to nematodes (Nematoda).

Keywords: carp, parasites, helminths, cestodes, nematodes, trematodes, reservoirs, Fergana Valley.

Pages in journal: 1049 - 1054