A method for producing a nutrient from larvae of Musca Domestica includes breeding and growing imagoes of Musca Domestica in an environment having a temperature of 18-35° C. and having a humidity of 50-80%. The imagoes of Musca Domestica lay eggs in the environment. The eggs of Musca Domestica are transferred into a cultivating material including at least one product of soybean and/or milk. The eggs of Musca Domestica are bred at a temperature of 20-35° C. until hatching into larvae. The larvae of Musca Domestica are placed on swine feces/urine of a thickness of 4-10 cm at a temperature of 20-35° C. for 2-3 days. The larvae feed on and decompose the swine feces/urine. The larvae of Musca Domestica are collected and treated by hot water and dehydrated to obtain a nutrient.
