Breeding insects for feed is common in China and the United States, where insects are fed primarily to poultry, but also to pigs and cattle. Production is carried out on organic substrates: manure, plant residues and biological waste, where insects lay eggs (for example, a female housefly lays 750 eggs per week). Then larvae hatch from the aggs and are fed until they reach the right size. Typically, fly larvae take a few days to reach the weigh over 400 times greater than immediately after hatching, and two weeks to reach the length of 2 cm. It takes 2 kg of feed to produce 1 kg of insect mass (to compare - about 3 kg is needed for pigs and 8 kg for cattle). Only fish and poultry need similar amounts of 2 kg of feed per 1 kg of weight gain. nsects require a suitable microclimate, and such parameters as humidity, temperature (approx. 30°C) and ventilation must be constantly monitored. Insect feed The best form of insect feed is meal. Housefly larvae can make up to 25% of poultry feed mixtures, without a negative impact on production outputs, feed intake and feed conversion rates. Their protein contains amino acids with high digestibility. In turn, BSF larvae meal reduces feed intake, thus improving the feed conversion ratio.