Department of Animal Husbandry
The word "by-product" is applied to a class of substances which during the process of manufacture at the mills and factories remain after the more valuable materials have been extracted. There are several kinds of these by-products in the market for sale as feeding stuffs, such as gluten meal, cottonseed Meal, oil meal, tankage, blood meal, bran, etc., and some have boon found to be of great value Lo the stockman when fed in conjunction with our commonly grown grains. They are valuable for feeding purposes because they contain, in abundance, the protein or nitrogenous part of a feed so necessary for the growth of the animal.
feeding pigs tankage, feeding pigs by-products, feeding swine, lvestock feed
South Dakota Agricultural College Experiment Station
Wilson, J.W. and Skinner, H.G., "Tankage and Other By-Products for Pigs. Shrunken Wheat for Swine." (1905). Agricultural Experiment Station Bulletins. 90.