Few crops have been developed primarily for livestock production. Zero-tannin faba beans (tannin being the highest anti-nutritional factor in faba beans) hold advantages over field peas such as higher crude protein and ability to grow better in variable conditions. Crop fractionation consists of the separation of the product into a main portion and one or more by-products. 2 by-products of importance come from the ethanol industry (Dried Distiller’s Grains with Solubles) and from the dry milling of wheat. These do have some negative aspects, for example, dry milling by-products contain more phytate, which mobilizes the need for xylanase and phytase enzymes to assist in the breakdown.