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

Kód výsledku v 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>

Výsledek na webu

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

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

"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."

Název v anglickém jazyce

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

Popis výsledku anglicky

"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."

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

40301 - Veterinary science

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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