Rice gluten and maize gluten are two plant-based protein sources used in animal feed. Although both are plant-based proteins used in animal feed, rice gluten contains moderate amounts of protein with high amounts of fiber. This makes rice gluten appropriate for use in cattle and aqua feed. On the other hand, maize gluten contains high amounts of protein with high digestibility. This is appropriate for use in poultry and pet feeds. Moreover, maize gluten contains high amounts of energy compared to rice gluten. Rice gluten is also appropriate due to its cost-effectiveness.