By-product feeds are often used in feeding animals. These are by-products of certain other feed and commodity industries, such as the production of distilled spirits and beer, wheat processing, wet corn milling, and etc. Products from the production of spirits such as brewer’s grains and/or distiller’s grains can make excellent animal feedstuffs.
There are also byproducts from the wheat milling industry, such as wheat bran, middlings, reddog, shorts, and etc. By-products from wet corn milling give us high fructose corn syrup and a variety of other corn products including corn gluten feeds and meals. In addition, there are products such as citrus pulp, beet pulp, and whole cottonseed.
All these make excellent feeds, but have the disadvantage that their nutrient content is often variable; these feeds should be sampled regularly so estimates of nutrient content can be used in formulating diets.
Author:Mike Westendorf, Rutgers, the State University of New Jersey