Wheat bran, a by-product of the dry milling of common wheat into flour, is one of the major agro-industrial by-products used in animal feeding. It consists of the outer layers (cuticle, pericarp and seedcoat) combined with small amounts of starchy endosperm of the wheat kernel.Wheat bran is a very palatable, high-fiber feed supplement that can be fed to adult pigs, poultry, cattle, sheep and horsesFibre, protein, minerals, and oil are mainly found in the outer layers of the grain, and wheat bran is richer in these nutrients than the whole grain.