A method of producing a high-protein insect meal for use as a fish, shrimp and animal feed by providing a closed, environmentally controlled mass insect production facility into which are introduced one or more species of insects that are rich in protein and particularly suited for use in fish, shrimp and animal feeds. The insects can be chosen from, but not limited to, the orders of Blattodea, Orthoptera, Diptera, or Lepidoptera. Also, the chosen insects can be of the species moths, butterflies, flies, beetles and crickets. The insects are then fed a food source which can be vegetable, grain, plant, or animal components, and fish and animal wastes. Upon reaching the desired life stage, the insects are harvested and then processed into a dried protein meal.