Nutritional evaluation of by-product feeds

摘要

THE feedlot industry was founded on feeding by-products. Some of the earliest records of by-products in the US date back to the early 1900s in Kentucky where cattle were fed brewers' and distillers' wastes. With 40 to 50 distilleries in eastern Kentucky, cattle feeding boomed, until the state was voted dry in 1916 during prohibition. Distiller's grains are currently the 'hot topic' in feedlot cattle nutrition spurred on by ethanol production for the automotive industry, not just by good old whiskey industry anymore. In Australia, cottonseed by-products have been successfully incorporated into feeding systems for nearly two decades. Indeed there are many successful examples of by-product feeding worldwide.