Control of Vibrio parahaemolyticus (AHPND strain) and improvement of water quality using nanobubble technology

Nghia, Nguyen Huu, Van, Phan Thi, Giang, Pham Thai, Hanh, Nguyen Thi, St‐Hilaire, Sophie, and Domingos, Jose A. (2021) Control of Vibrio parahaemolyticus (AHPND strain) and improvement of water quality using nanobubble technology. Aquaculture Research. (In Press)

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Abstract

Nanobubble technology is used in wastewater treatment, but its disinfectant properties in aquaculture have not been clearly demonstrated. This study investigated the ability of nanobubbles to reduce Vibrio parahaemolyticus (AHPND strain) and to improve water quality. Two laboratory experiments were conducted over a one‐week period, that is (a) assessing the effects of air and oxygen nanobubbles for 60 minutes per day and (b) comparing effects of ozone nanobubble treatments for 2, 4 and 6 minutes per day. Experiments were done in triplicate 100 L tanks with 15‰ saline water, inoculated with an initial bacterial concentration of 106 CFU/ml. At the end of experiment 1, the bacterial concentration of the air and oxygen nanobubble groups was counted for 69% and 46% of the control group respectively. At the end of experiment 2, the bacterial concentration of the 2‐, 4‐ and 6‐minute ozone nanobubble groups were counted for 23%, 2.2% and 0% of the control group respectively. Oxygen and ozone nanobubbles significantly increased oxygen reduction potential and oxygen values. Results indicate that under effective dosages nanobubbles can be used in the production farms to control V.parahaemolyticus and increase oxygen levels.

Item ID: 65839
Item Type: Article (Research - C1)
ISSN: 1365-2109
Keywords: Nanobubbles, Oxygen reduction potential, Shrimp farming, Vibrio parahaemolyticus
Copyright Information: This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. © 2021 The Authors. Aquaculture Research published by John Wiley & Sons Ltd.
Funders: UK Government - Department of Health and Social Care (DHSC), Global AMR Innovation Fund (GAMRIF), International Development Research Centre (IDRC)
Date Deposited: 04 Feb 2021 01:16
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300503 Fish pests and diseases @ 50%
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture @ 50%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830102 Aquaculture Fin Fish (excl. Tuna) @ 50%
83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830105 Aquaculture Prawns @ 50%
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