Given that some regions use insects as an alternative protein source for humans, isn’t it also possible to feed cattle with insects? Yes, it is a sustainable way. Moreover it is not limited by cultural restraints of the more industrialised societies. One of the biggest concerns for the environment today is the unequal distribution of manure and great amount of organic wastes. This manure is not immediately used as fertilizer for plants or grains. The storage and management of manure is associated with environmental problems such as soil and air pollution, space limitation and odour. To reduce storage problems, insects can be fed on the manure piles, which will reduce the level of nutrients, the amount of bulk mass and odor. Several insects can be used for these processes in different ways.