article · Reviews in Aquaculture
Growing global demand for affordable animal protein has accelerated the expansion of aquaculture, creating an urgent need for sustainable aquafeed ingredients to replace expensive fish and soybean meals. Fruit processing generates significant volumes of by-products that present environmental disposal challenges despite their rich nutritional composition. Incorporating these fruit wastes into aquafeed has been successfully implemented, demonstrating improvements in the growth performance, productivity, and overall well-being of aquatic species. Furthermore, fruit by-products serve as valuable functional additives due to their high concentrations of bioactive compounds, including polyphenols, flavonoids, vitamins, minerals, polysaccharides, and peptides. These components improve immune and antioxidative defences, helping aquatic animals tolerate both biotic and abiotic stressors. Utilising dietary additives derived from fruit processing also offers an eco-friendly approach to lower reliance on antimicrobial chemicals, helping mitigate antimicrobial resistance while establishing non-traditional plant ingredients as a feasible strategy for industry sustainability.
Aquaculture requires affordable, sustainable feeds to meet rising food demands without depleting marine or agricultural resources. Utilising fruit processing waste simultaneously addresses environmental problems associated with food disposal and lowers feed costs. Moreover, replacing synthetic antimicrobial chemicals with natural, plant-derived additives helps safeguard aquatic health and counters the growing global challenge of antimicrobial resistance.
Aquafeed manufacturers and fruit processors can use these findings to formulate functional feeds and dietary additives using fruit waste streams. The evidence indicates applied and tested implementations that improve aquatic health and performance, while reducing reliance on antimicrobial chemicals. However, wider commercialisation requires further development and research to fully optimise processing and maximise ingredient utilisation at an industrial scale.
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Abstract The aquaculture sector is steadily growing due to the increasing demand for healthy and cheap animal protein sources. Consequently, the high demand for nutritionally balanced aquafeed increases, but requires sustainable and feasible feed ingredients. However, the high cost of fish and soybean meals opens the door to looking for suitable non‐traditional feed ingredients. The processing of fruits results in high amounts of waste and by‐products, which are risky for the environment but rich in nutritional value. Recycling fruit waste in aquafeed is successfully applied and results in high growth performance, productivity and well‐being of aquatic animals. Fruit by‐products are also potential functional feed additives devoted to their high content of polyphenols, flavonoids, vitamins, minerals, polysaccharides and peptides. As functional components, fruit by‐products enhance the antioxidative and immune responses of aquatic animals and increase their tolerance for biotic and abiotic stressors. In light of reducing antimicrobial chemicals in aquaculture to mitigate antimicrobial resistance, dietary feed additives extracted from fruit by‐products can be used as eco‐friendly substances. The investigations involved in evaluating the incorporation of fruit by‐products and their derivatives in aquafeeds are explored in this review. An overview of the possibility of using non‐traditional plant products in aquaculture as a feasible and sustainable concept is addressed in this review. Academic knowledge with enough information for more development and research to maximise the utilisation of fruit by‐products in the aquafeed industry is also enriched.
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DOI: 10.1111/raq.12680
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