Effect of water treatment with CaviPlasma on survival of disease agents of fish

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F23%3AN0000136" target="_blank" >RIV/00027162:_____/23:N0000136 - isvavai.cz</a>

Result on the web

<a href="https://delegate-reg.co.uk/eafp2023" target="_blank" >https://delegate-reg.co.uk/eafp2023</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Effect of water treatment with CaviPlasma on survival of disease agents of fish

Original language description

"Papežíková, I., Toulová, I., Vaibarová, V., Mikulíková, I., Minářová, H., Mendel, J., Palíková, M., 2023. Effect of water treatment with CaviPlasma on survival of disease agents of fish. 21st International Conference on Diseases of Fish and Shellfish, Abstract Book, European Association of Fish Pathologists, Aberdeen, UK, 11.–14. 9. 2023, p. 190. Background: This work was aimed at testing a new patented technology named CaviPlasma which was designed for purifying water from microorganisms and pollutants. Biocidal effect of treatment with CaviPlasma was tested on water contaminated with three bacterial pathogens of fish and with parasitic ciliate Ichthyophthirius multifiliis. Methodology: In Experiment 1, three species of bacteria (Aeromonas salmonicida, Aeromonas hydrophila and Flavobacterium psychrophillum) were suspended in tap water and treated with CaviPlasma. After the treatment, bacterial suspensions were stored at 17 °C and concentration of bacteria was regularly measured using plate count method. Untreated bacterial suspensions served as controls. In Experiment 2, tap water containing invasive stages of Ichthyophthirius multifiliis was treated with CaviPlasma and added at 10% concentration into fish tanks with juvenile common catfish (Silurus glanis). In positive control, untreated water with parasites was added into tanks. After five days, fish were euthanized, and their skin and gills were examined for the presence of parasites. Results: In Experiment 1, water treatment with CaviPlasma resulted in devitalization of all tested bacterial species. In Experiment 2, adding of untreated water with I. multifiliis into the tanks resulted in the development of severe ichthyophthiriasis in fish. In fish from tanks with CaviPlasma-treated water, no parasites were found on skin or gills and no mortality was observed. Conclusions: Water treatment with CaviPlasma proved to be effective against three fish bacterial pathogens and against a parasite Ichthyophthirius multifiliis. Effect of CaviPlasma-treated water on fish health, growth performance and microbial community of biofilters remains to be tested."

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

40301 - Veterinary science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů