Food

Harvesting Larvae from Waste for Animal Feed

To satisfy the global demand for meat and fish, livestock and fish farms typically use protein-rich fishmeal as feed. High demand for fishmeal contributes to the declining global fish stocks. AgriProtein have developed a process whereby waste from cities is fed to fly larvae, which grow rapidly by feeding on the waste and biodegrading it. When they’ve grown, the larvae and the organic residues are processed into MagMeal, MagOil and MagSoil. MagMeal is a protein-rich feed ingredient, which is used as a fishmeal replacement for poultry farms, fish farms and other aquaculture. MagOil contains healthy acids and is used to make fish pellets and pet food, and MagSoil is a soil-enriching compost high in nitrogen.

At present, AgriProtein processes 110 tons of fresh waste per day. From this, they produce 20 tonnes of fly larvae for producing their protein-rich feed and 40 tons of fertilizer. According to the company, the remainder of the mass is moisture which evaporates to the atmosphere. The company has ambitious expansion plans, having developed a standard 250 tonne per day plant, with plans to roll out up to 25 of these factories per year.

Why you should care

AgriProtein have developed a process that helps to solve the three separate and pressing global challenges of landfill waste, fish stock depletion and global greenhouse gas emissions. By using organic waste to feed fly larvae, which in turn are used as an animal feed, the company can reduce carbon emissions at all three stages.

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