Dietary ınnovation in blue crab aquaculture: effects on performance and product quality

Abstract Blue crab aquaculture faces challenges in optimizing feed formulations that balance nutritional requirements with sustainability. This study evaluated three innovative feed formulations incorporating unique ingredient combinations: a specialized high-protein formulation using novel protein hydrolysates (D1), a marine-based diet enriched with bioactive compounds from sustainable sources (D2), and an advanced plant-based formulation with enhanced digestibility through fermentation (D3). Growth performance, survival, energy conversion efficiency, molting frequency, and meat quality were assessed over 16 weeks. The marine-based diet (D2) achieved superior results with 92% weight gain and 95% survival rate, significantly outperforming the commercial control. This research demonstrates the potential of novel ingredient combinations and processing techniques in enhancing blue crab aquaculture productivity while addressing sustainability concerns.