Practically all of the 85,000 hogs on the farms of Utah (as of August 1, 1934) are in the irrigated sections of the state where they fit in well with dairying. Utah, however, is a hog-deficient area and produces about 109,000 hogs less than are slaughtered in the state for its own use. Large amounts of milk by-products such as skim milk, buttermilk, and whey are produced in Utah. Large amounts of alfalfa are also grown in the irrigated sections, thus providing excellent pasture for the growing out and feeding of market hogs. Barley is the principal feeding grain grown in this state. Much wheat, however, is grown, which in recent years has been fed extensively to livestock.
The production and fattening of hogs in conjunction with dairy-farming has proved to be well adapted to the agricultural program in large dairy centers. By furnishing a ready market for dairy by-products (skimmilk, buttermilk, and whey), hogs help to strengthen the dairy industry, while home-grown grains and leguminous pastures complete an adequate swine-growing and fattening ration for hogs raised on the farm.
It is estimated that central creameries in Utah are producing over 2000 tons of skimmilk powder and over 350 tons of buttermilk powder. The possibility of getting this concentrated protein supply back to the farms where the milk was originally produced appeals to the creamery men in face of a steadily increasing supply of the product.
Smith, H. H. and Maynard, E. J., "Bulletin No. 254 - Summer and Winter Rations for Fattening Hogs" (1935). UAES Bulletins. Paper 217.