The application of Black Soldier Fly (BSF) larvae as an alternative protein source in aquaculture is emerging as a game-changer for sustainable fish farming and circular economy models. In Kenya, small-scale aquaculture farmers, who produce approximately 24,000 metric tons of fish annually, face significant challenges in accessing affordable, high-quality feed, with fishmeal accounting for over 60% of production costs. BSF larvae, containing 40-50% protein and 25-35% fat, provide a nutrient-dense, cost-effective feed solution that can reduce feed expenses by up to 30% compared to traditional fishmeal.
This study evaluates the integration of BSF larvae into aquaculture systems and its potential to improve the livelihoods of Kenya’s small-scale farmers. By utilizing organic waste, such as food scraps and agricultural by-products, to rear BSF, farmers can convert up to 50 kilograms of waste into 15 kilograms of larvae within a few days. This not only provides a sustainable feed source but also addresses waste management issues, as it reduces organic waste by up to 60%. Moreover, studies have shown that fish fed on BSF-based diets achieve growth rates comparable to those on conventional feeds, leading to healthier yields and increased profits.
The adoption of BSF in aquafeeds promotes a circular economy by closing the loop between waste and resource utilization. This approach can improve household incomes by 20-25%, contributing to food security, economic growth, and environmental sustainability. The BSF solution offers a pathway for small-scale farmers to reduce costs, manage waste effectively, and achieve long-term sustainability in Kenya’s aquaculture sector.