This report, the fifth of a series of yearly reports on livestock trucking in Iowa, is made possible thru the cooperation of the four public markets, 14 packing plants and 29 concentration points that receive Iowa livestock by truck.1 All these markets report the number of hogs they receive by truck yearly, and the four public markets and six packing plants receiving other species of livestock by truck reported on the numbers of cattle, calves and sheep that they had received in this manner during 1930. This year for the first time preliminary tabulations on truck receipts of species of livestock other than hogs are included.
FitzGerald, D. A., "Statistics of Livestock Trucking in Iowa" (1931). Circular. Paper 128.