Farmed on an industrial scale and fed to fish, insects present a greener alternative to current fish food
hope that insects will play a big role in future human diets. Insects are nutritious, being packed with protein. Unlike hot-blooded mammals and birds, which use a lot of energy to keep themselves warm, they are efficient converters of food into body mass. And in some parts of the world they are, indeed, eaten already.
Ynsect’s test facility, in Burgundy, is 20 metres tall and has 10,000 mealworm-laden trays. Nothing is wasted. The insects’ droppings are collected for use in fertilisers. When the larvae are about ten weeks old, those not destined to pupate, and thus provide the next generation of mealworms, are sorted, cleaned and steamed to death. They are then, as Antoine Hubert, Ynsect’s boss, puts it, treated like olives. They are crushed to extract their oil and the remaining pulp is dried and powdered.
Once removed from the breeding cages, the eggs are placed in hatching units and the young larvae then transferred for a short time to a nursery before being moved again, to an area where they can grow. After ten days here they are crushed and turned into oils and meal in a manner similar to that employed by Ynsect.
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