The intensification of pisciculture operation requires the provision of an adequate supply of good quality fish feed. Many commercial feeds consist in fishmeal or soybean meal-based formulations, but they constitute costly protein sources. Hence, dietary transition from conventional fish ingredients towards fungi protein sources produced from vinasse could address concern about both fish feed cost and the detrimental environmental effects of distillery waste disposal. This work investigated the nutritional and toxicological aspects of Aspergillus sp. V2 grown on vinasse to be used as a possible fish feed. Proximate analysis of biomass obtained from 50% (v/v) residue supplemented with 2.0 g/L (NH₄)₂H₂PO₄ revealed a total proteins content (34.0%), fat (4.7%), ash (15.8%), crude fiber (4.0%), moisture (0.3%) and carbohydrate (45.2%) within acceptable levels for commercial fish diets. The biomass protein composition was similar to soybean meal, containing all the essential amino acids (EAAs) for fish feeding. Finally, total aflatoxins level was 6.8 ± 0.2 µg per kg of dry weight, which does not exceed the permissible levels established for feedstuffs. These findings provide evidence that biomass of Aspergillus sp. V2 produced from vinasse could meet the nutritional requirements for use in fish diet, reducing economic pressures for the pisciculture and distilleries.

养鱼作业的集约化需要提供充足的优质鱼饲料。许多商业饲料包括基于鱼粉或豆粕的配方，但它们构成昂贵的蛋白质来源。因此，从传统鱼类成分到由酒糟生产的真菌蛋白来源的饮食转变可以解决对鱼饲料成本和酒厂废物处理的有害环境影响的担忧。这项工作调查了曲霉属的营养和毒理学方面。在酒糟上生长的 V2 可用作可能的鱼饲料。从添加 2.0  g/L (NH ₄ ) ₂ H ₂ PO _{4 的}50% (v/v) 残留物中获得的生物量的近似分析显示总蛋白质含量 (34.0%)、脂肪 (4.7%)、灰分 (15.8%)、粗纤维 (4.0%)、水分 (0.3%) 和碳水化合物 (45.2%) 在商业鱼类饮食的可接受水平内。生物质蛋白质的组成与豆粕相似，含有鱼饲料所需的所有必需氨基酸 (EAA)。最后，总黄曲霉毒素水平为 每公斤干重6.8 ± 0.2 µg，未超过为饲料制定的允许水平。这些发现提供证据表明曲霉属的生物量。酒糟生产的 V2 可以满足鱼类饮食的营养需求，减轻养鱼和酿酒厂的经济压力。