Livestock and poultry inventory, 1971-75; distribution of livestock, 1975; livestock value per head, 1966-75; Illinois' position in livestock industry; inventory and value of calf crop; cattle production and income, 1968-75; cattle inventory; cattle and calves on feed; cattle marketings and inshipments; inventory and value of all cattle, and beef and milk cows, by county and district, 1974-75; swine inventory and pig crop; hog inshipments, numbers, production and income; swine and pig inventory by county and district, 1973-74.published or submitted for publicationnot peer reviewe