Keywords
nematoda
lichinka
karpsimonlar
Sechankoʻl
parazitofauna
infeksiya.
How to Cite
Abstract
Oʻzbekistonning Qashqadaryo viloyati Sechankoʻl tabiiy suv havzasidan 2026-yil aprel–avgust oylarida yigʻilgan 72 ta karpsimonlar vakili Contracaecum nematodalari lichinkalari bor-yoʻqligi jihatidan tekshirildi. Natijalarga koʻra, parazit bilan baliqlar zararlangan boʻlib, infeksiya tarqalishi 5,5 % (4/72) ni tashkil etdi. Lichinkalar ichak devori, jigar, tuxumdonlar, suzish pufagi, oʻt pufagi va meʼda-ichak yoʻllarida aniqlandi. Optik mikroskopiya yordamida ular Contracaecum uchinchi lichinka bosqichi (L3) ekanligi tasdiqlandi. Lichinkalar och jigarrang-sariq rangda, choʻzilgan silindrsimon tana va konus shaklidagi qisqa dumga ega edi; tana yuzasida kutikulyar chiziqlar, old tomonda ekskretor teshik va boring tish kuzatildi. Tadqiqot Sechankoʻl suv havzasida Contracaecum lichinkalarining past darajadagi tarqalishini va morfologik xususiyatlarini birinchi marta qayt etildi.References
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