Aquaculture

Portland, OR, Jan. 13, 2021 (GLOBE NEWSWIRE) — According to the report published by Allied Market Research, the global fish farming market generated $271.61billion in 2018 and is projected to reach $376.48 billion by 2025, witnessing a CAGR of 4.7% from 2018 to 2025.

This highly susceptible industry has much to gain from the enrichment of molecular hydrogen and oxygen throughout the life cycle from hatchery to plate. However, it has not been until recent times that gas infusion technologies and devices have advanced to the point that large volumes of water can be supplemented with this life-giving gas to make this application viable.

The oxygenation of water is well known to increase biological activity, growth rate and yield potential however, increasing oxygen levels too high increases oxidative potential also leading to high-stress levels and catastrophic loss potential too. If oxygen levels are managed well, nanobubble infusion alone would improve feed conversion ratios and avoid mass death due to heat stress and adverse weather events, and is shown to be able to double the harvest potential when compared to classical aerators.

However, it is the molecular hydrogen inclusion into this mix of water supplementation at the nanobubble level that dramatically improves wound healing, antioxidant capacity and improve mitochondrial function once again translating into better feed conversion ratios by providing a supply of ATP decoupled from food intake. Moreover, Hu et al (2017) demonstrated that molecular hydrogen treatment dramatically improved the innate immune system in fish, thus improving disease resistance also.

  1. Hu, Z. et al. Impact of molecular hydrogen treatments on the innate immune activity and survival of zebrafish (Danio rerio) challenged with Aeromonas hydrophila. Fish Shellfish Immun 67, 554–560 (2017).
  2. Rahmawati, A. I. et al. Enhancement of Penaeus vannamei shrimp growth using nanobubble in indoor raceway pond. Aquac Fish 6, 277–282 (2021).
  3. Tanaka, Y., Xiao, L. & Miwa, N. Hydrogen-rich bath with nano-sized bubbles improves antioxidant capacity based on oxygen radical absorbing and inflammation levels in human serum. Med Gas Res 12, 91-99 (2022).
  4. Blier, P. Fish Health: An Oxidative Stress Perspective. Fisheries and Aquaculture Journal 05, (2014).
  5. Secci, G. & Parisi, G. From farm to fork: lipid oxidation in fish products. A review. Italian Journal of Animal Science 15, 124-136 (2016).