Oxygen Nanobubbles for Kuruma Prawn culturing model in RAS

https://www.sciencedirect.com/science/article/pii/S2352513425002686?via%3Dihub#bib45

• Long-term exposure to Oxygen Nanobubble can increase DO and effectively inhibit the total bacterial count and vibrio count in water.

• Oxygen Nanobubble can improve growth, digestion, muscle approximation, and serum biochemical indicators in Penaeus japonicus.

• Long-term exposure to Oxygen Nanobubble does not result in any significant adverse effects on the gut morphology of Penaeus japonicus.

This study evaluated the effects of NB-O₂ technology on kuruma prawn

(Penaeus japonicus) aquaculture by comparing two dissolved oxygen (DO)

levels: air treatment at 7.45 ± 0.16 mg/L and NB-O₂ treatment at 15.95 ± 0.11 mg/L

over 40 days. The NB-O₂ treatment resulted in significant improvements in

shrimp growth performance, intestinal digestive enzyme activity, muscle composition,

and serum biochemical profiles. Additionally, it enhanced the expression of digestive

and antioxidant genes, preserved intestinal structure, and significantly reduced the

number of pathogenic bacteria in the seawater. In conclusion, NB-O₂ technology

presents a promising strategy for advancing sustainable aquaculture practices. Although

nanobubbles (NBs) hold significant potential for application in aquaculture, relatively few

studies have been conducted, and numerous challenges must be addressed before NBs

technology can be widely adopted in practical production systems. Future research is

necessary to further investigate the benefits, biosafety, and potential long-term effects of

NBs on farmed animals. In particular, the specific effects of NBs generated from different

gases on the health of farmed animals should be systematically assessed to optimize and

enhance existing aquaculture technologies, ensuring both animal welfare and production efficiency.