Manufacture, Composition, and Utilization of Dairy Byproducts for Feed

Excerpts from the report: The production of concentrated and dried buttermilk, skim milk, and whey on a commercial scale was made possible by two conditions: (1) Scarcity, high prices, and need for commercial feedstuffs during the World War; and (2), the establishment of central creameries, which assured a large and steady supply of buttermilk. The potential feed value of these byproducts, which to a large extent were being wasted, had been recognized long before, but the cost of preparing a feed from them far exceeded the price of other feeds of equal feeding value. During the World War, condenseries and drying plants sprang up all over the dairy districts. Thus a new industry, the dairy byproducts industry, was established. The development of this industry was materially assisted by the favorable reports made by numerous investigators, largely experiment station workers, who demonstrated the high feed value of dairy products. These byproducts have now found a firm place on the market as valuable feeds for poultry and livestock. The various processes of manufacturing dairy byproducts are described, and analyses of dairy byproducts are given.