Black soldier fly (Hermetia illucens) larvae (BSFL) is a sustainable protein and lipid source in the diets of terrestrial and aquatic animals. This is largely due to their ability to thrive on various waste products, but the food type greatly influences their productivity and nutritional value. In this study, BSFL (initial mean weight = 0.11 g) were fed sweet potato, spent coffee or dough for two weeks and the survival, growth, feed efficiency, and biochemical composition were assessed. The best bioconversion/material reduction was from dough. The dough also produced significantly larger/heavier BSF, but a significantly lower percentage of pre-pupae. Crude protein was significantly higher in BSFL fed spent coffee than either dough or sweet potato. Among the essential amino acids, leucine and valine in BSFL were significantly higher in the spent coffee or sweet potato compared to those fed dough. BSFL fed sweet potato had the highest percentage of lauric acid (C12), while both sweet potato and spent coffee elevated eicosapentaenoic acid (20:5n-3), which is beneficial to terrestrial and aquatic animals. Although each substrate was high in carbohydrates, these produced BSFL with a high-quality protein content comparable or even superior than some plant-based proteins. Overall, sweet potato produced BSFL with the best nutritional profile while supporting their growth.

黑士兵飞（Hermetia illucens幼虫（BSFL）是陆生和水生动物饮食中可持续的蛋白质和脂质来源。这主要是由于它们能够在各种废物上壮成长，但是食物类型极大地影响了它们的生产力和营养价值。在这项研究中，将BSFL（初始平均重量= 0.11 g）饲喂甘薯，废咖啡或生面团两周，并评估其存活率，生长，饲料效率和生化组成。最佳的生物转化/材料减少来自面团。面团还产生了明显更大/更重的BSF，但前-的百分比却明显降低。用BSFL喂养的废咖啡中的粗蛋白显着高于面团或甘薯。在必需氨基酸中，与饲喂面团的人相比，用过的咖啡或甘薯中BSFL中的亮氨酸和缬氨酸明显更高。BSFL饲喂的甘薯中月桂酸（C12）的含量最高，而甘薯和废咖啡中的二十碳五烯酸（20：5n-3）含量较高，这对陆生和水生动物都是有益的。尽管每种底物的碳水化合物含量都很高，但它们产生的BSFL的高质量蛋白质含量与某些植物基蛋白质相当甚至更高。总体而言，红薯生产的BSFL具有最佳的营养特性，同时又能支持其生长。尽管每种底物的碳水化合物含量都很高，但它们产生的BSFL的高质量蛋白质含量与某些植物基蛋白质相当甚至更高。总体而言，红薯生产的BSFL具有最佳的营养特性，同时又能支持其生长。尽管每种底物的碳水化合物含量都很高，但它们产生的BSFL的高质量蛋白质含量与某些植物基蛋白质相当甚至更高。总体而言，红薯生产的BSFL具有最佳的营养特性，同时又能支持其生长。