Nutrient Profile of Wild Black Soldier Fly (Hermetia illucens) Prepupae Reared on Municipal Dustbin’s Organic Waste Substrate

In order to meet the uprising demand and for sustainable production of high-quality nutritive animal feeds, Black Soldier Fly (BSF, Hermetia illucens ) larvae were reared on dustbin’s organic waste substrate. The species was collected from the municipal dustbin area of Laboratory road, Dhaka metropolitan city of central Bangladesh where a large amount of food and kitchen wastes are dumped every day. To identify the potentiality of the reared BSF prepupae to be used as a feed source for livestock and fish, the nutritional values of the BSF prepupae were evaluated. The samples of prepupae were dried in an electric oven at 105 °C and then proximate, minerals, amino acids, and fatty acids analyses were carried out. Reared BSF prepupae contained 38.44% dry matter, 29.58% crude protein, 45.52% crude fat, 9.23% ash, and 5.37% crude fiber on a dry weight basis. The minerals of prepupae hold a high amount of calcium (42 g kg −1 ). The amino acids compositions were dominated by nonessential amino acids. Glutamic acid (33.1 g kg −1 ) and leucine (21.3 g kg −1 ) levels were found higher among nonessential and essential amino acids, respectively. Prepupal fatty acids are mainly comprised of lauric acid (45.26%) along with the presence of human health beneficent linoleic acid (15.33%) and α-linolenic acid (1.64%). These findings thus suggest that the reared BSF prepupae can be regarded as a promising nutritive feed source for livestock and fish.