Here inthe Philippines we do use much of byproducts like ricebran from rice production, copra from coco oil production, wheat pollard from starch production, and molasse from sugar production. Other which depends on the availabilty would be rice binlid or broken rice, corn gluten from corn starch production and all reject human grade food like biscuits, milk, noodle, bread, vegetables and used oil. We also used feathermeal from poultry production in aqua. In using such products, take consideration the actual analysis especially toxin, and use additves such as enzymes, sulfactant and toxinbinder. With sufficient machineries we could maximize other byproducts.