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.

中文翻译：

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水产饲料行业的水果加工副产品：水产养殖可持续性的可行策略

由于对健康和廉价动物蛋白来源的需求不断增加，水产养殖业正在稳步增长。因此，对营养平衡的水产饲料的高需求增加，但需要可持续和可行的饲料成分。然而，鱼和豆粕的高成本为寻找合适的非传统饲料原料打开了大门。水果加工会产生大量废物和副产品，这些废物和副产品对环境有风险，但营养价值丰富。在水产饲料中回收水果废料得到了成功的应用，并提高了水生动物的生长性能、生产力和福祉。水果副产品也是潜在的功能性饲料添加剂，它们富含多酚、类黄酮、维生素、矿物质、多糖和肽。作为功​​能组件，水果副产品可增强水生动物的抗氧化和免疫反应，并提高它们对生物和非生物压力源的耐受性。鉴于减少水产养殖中的抗菌化学物质以减轻抗菌素耐药性，从水果副产品中提取的膳食饲料添加剂可用作环保物质。本综述探讨了评估在水产饲料中掺入水果副产品及其衍生物所涉及的调查。本综述概述了在水产养殖中使用非传统植物产品作为可行和可持续概念的可能性。学术知识有足够的信息进行更多的开发和研究，以最大限度地利用水产饲料行业的水果副产品。