This report provides a commentary on the changes in the composition and structure of the U. S. hog breeding herd by size of operation and efficiency of the breeding herd in comparison with historical trends. In addition, Information on inventory, annual pig crop, slaughter weights, dressing percent, value, imports, litter rate, farrowing, and gross income is also contained within this report. Data was collected from hog operations via probability surveys, and estimates were prepared by the Ag...
This publication was produced from 1944 to 1968 and provides information about the number of hogs and pigs farrowed and saved during that period in the United States. Number of pigs per litter is also included by thousand head of pig.