Histopathological effects of waterborne copper nanoparticles on the gill of rainbow trout (Oncorhynchus mykiss) fry
Publish place: The Second Iranian Conference of Ichthyology
Publish Year: 1393
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICII02_216
تاریخ نمایه سازی: 7 تیر 1399
Abstract:
In the present study, totally 300 rainbow trout fry with an initial weight of 6.44 ± 0.37g (Mean ± SE) were randomly allocated to 15 fiberglass tanks (with 45 L volume and20 L water volume) at 5 different Cu-NPs treatments with 3 replicates. Treatmentswere the control (no added Cu-NPs), 5, 10, 20 and 40 μg/l Cu-NPs (mean primaryparticle size of 2-6 nm) in a semi-static waterborne exposure regime. The fish gillwere sampled at day 10 and samples were dehydrated by routine methods andembedded in paraffin wax. They were sectioned by microtome and stained with H &E. All treatments caused organ injuries including: necrosis (5 and 40 μg/l Cu-NPstreatments); Hydropic degeneration (10 and 20 μg/l Cu-NPs treatments); hyperplasiaand fusion of secondary lamellae (10 and 40 μg/l Cu-NPs treatments); epitheliumlifted away from the basement membrane (10 μg/l Cu-NPs treatment); shortening ofsecondary lamellae (10, 20 and 40 μg/l Cu-NPs treatments); shortening of gillprimary lamella and loss of secondary lamellae (20 and 40 μg/l Cu-NPs treatments)and congestion (20 μg/l Cu-NPs treatment).
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Authors
Forouzan Bagherzadeh Lakani
Department of Fishery, Faculty of Natural Resources, Urmia University, Urmia
Saeid Meshkini
Department of Fishery, Faculty of Natural Resources, Urmia University, Urmia
Rahim Hobenaghi
Department of Food Hygienic and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia
Rahim Molaei
Department of Pathology, Faculty of Veterinary and Medicine, Urmia University, Urmia