FEED INGREDIENTS ▶▶▶
Insect protein from poultry waste
BY VLADISLAV VOROTNIKOV R
ussian company ZooProtein is currently shaping up its technology of re-processing waste from poultry farms into protein-rich biomass for the further use in animal feed, Alexey Istomin, the com-
pany’s deputy Chief Development Officer told Poultry World exclusively. Having spent several years analysing studies dedicated to the use of flies in animal feed, including those found in the archives of Soviet scientific organisation, the company’s heads eventually decided to become pioneers of this business in the country. In the very beginning, the Istomins family was planning to cultivate flies to manufacture maggots as bait for game fish- erman, but soon decided to emerge in a more attractive niche, manufacturing dried matter for the Russia’s pet food producers. However, that market was limited due to its size. As a result, they decided to shift their focus to animal farms. “Our main target is not to sell biomass from maggots itself, but to promote the technology of closed-cycle waste re- processing at the farms, obtaining feed components and fertilisers,” Alexey Istomin says.
Natural process The technology’s key hallmark, according to Alexey Istomin, is that it is fully natural, and every process it involves, takes place just as in nature. The company chose Lucilia Caesar, commonly referred to as the common greenbottle fly, to re-process waste. “Our technological system consists of the several separate blocks. The first one is insectarium, or rear- ing house, the one where flies live. The flies eat sugar, milk powder and drink water, so every day they carry eggs on special trays with minced meat, made from meat waste. Once a day, trays with eggs are taken from the insectarium to the larval growth zone,” Istomin adds. At its own production facility in Lipetsk Oblast, where the company tests its technology – ZooProtein currently has 5 million flies and plans to bring that figure to 20 million in a due course. For that “stock” the company takes waste from a regional poultry farm. “Maggots hatch under closely moni- tored climatic conditions and begin to process waste. The maggots have an external digestion, this means that it re- leases a special secretion that mineralises and liquefies the
▶ POULTRY WORLD | No. 2, 2018 17
How to turn waste from poultry farms into protein for use in feed again? Insects are the key to this question. The Russian company ZooProtein developed a closed system, where maggots feed on waste, before being harvested and dried as a protein source.
raw material. The organism of maggots accumulates only valuable substances and amino acids. It all ends within four days, and by that time maggots have grown 300 times from its initial size. We harvest it, separate it from the processed substrate, and send it for drying,” he explains. As soon as maggots are dried, they must be milled, and then the product is ready to be used in poultry feed. The biomass of maggots consists of 50% protein and 30% fat, according to official company’s information. Up to 80% of fat is unsatu- rated fatty acids, which result in a high energy value, higher compared to the soybean meal and fishmeal. “In spite of such a high content of fatty acids, the dried protein-rich bio- mass from maggots is stored for more than a year without the increasing acid and peroxide value. This is possible due
The fully closed insect produc- tion system of ZooProtein uses the common Greenbottle fly to re-process poultry waste.
PHOTO: ZOOPROTEIN
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