Technologies for the Rational Use of Animal Waste: A Review

Animal waste can serve as a raw material source for feed preparation, and also be used, after appropriate processing, fuel, fertilizer, biogas, other useful products. In addition, the practical use of these wastes eliminates their mandatory disposal. Recycling animal is feature circular economy, leading to environmental sustainability. this regard, we conducted search review contemporary scientific publications from open sources, including data Internet portals, Web Science, Scopus scientometric databases, websites patent offices, libraries, reading rooms. It has been found that by-products are desirable in combination with vegetable protein sources. The 15 most relevant types indicated based on current publications. Moreover, 13 origin, along purposes descriptions, identified. Current research processing insects into feed; bird droppings, meat, bone meal; seafood waste, eggshells reviewed. As result, firstly, important technological equipment involved technologies, particularly devices drying, grinding, mixing, analyzed discussed. Secondly, technologies products origin