A new study has revealed that fungi-derived feed ingredients could help protect farmed salmon from harmful pathogens. The research, conducted by aquatic animal research group Onda in collaboration with Belgian citric acid and mycelium producer Citribel, highlights the potential of fungal supplements in boosting fish immunity.
Beta-Glucans Enhance Immune Response in Salmon
The study examined the effectiveness of MycoFence, a supplement containing beta-glucans—soluble fibers derived from the cell walls of fungi, bacteria, yeasts, and some plants. These beta-glucans, extracted from the fungus Aspergillus niger, were found to enhance the immune response of Atlantic salmon.
Protection Against Deadly Aquatic Pathogens
The research focused on two common pathogens in aquaculture: Tenacibaculum maritimum and Moritella viscosa. Both bacteria are known to cause severe infections in farmed fish, leading to significant losses in the industry.
Atlantic salmon were fed different concentrations of MycoFence before being exposed to these pathogens. Results showed that fish receiving higher doses of the supplement experienced a significant reduction in mortality rates compared to the control group that did not receive the supplement.
Implications for Sustainable Aquaculture
These findings suggest that fungi-derived feed additives could play a crucial role in improving fish health and reducing disease-related losses in aquaculture. By enhancing immunity naturally, MycoFence may help reduce the reliance on antibiotics, contributing to a more sustainable and environmentally friendly approach to fish farming.
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