Summary
This 2023 study assessed single-cell protein from methanotrophic bacteria as a functional and sustainable alternative protein ingredient for juvenile rainbow trout aquafeeds. The research employed a holistic evaluation framework examining growth, feed utilisation, digestive physiology, and health outcomes to establish functional equivalence to conventional protein sources. The work supports circular-economy approaches in aquaculture by exploring biotechnology-derived, potentially lower-impact protein alternatives to fishmeal and plant-based ingredients.
Regional applicability
Whilst the study's geography is not specified in the available metadata, the findings would be applicable to United Kingdom aquaculture operations if replicated in comparable freshwater or recirculating systems. The sustainability angle aligns with UK policy interest in reducing aquaculture's environmental footprint and import dependence on fishmeal.
Key measures
Growth performance metrics (likely weight gain, specific growth rate), feed conversion ratio, digestive enzyme activity, nutrient digestibility, gut health markers, and potentially immune function indicators
Outcomes reported
The study evaluated single-cell protein (SCP) derived from methanotrophic bacteria as a sustainable protein source in rainbow trout feeds, likely measuring growth performance, feed conversion efficiency, digestive physiology, and health markers.
Topic tags
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