Summary and Implications
Iowa has led the U.S. in swine production and pig inventory since the 1880s. Pig production has been a reliable value-added enterprise on many Iowa farms for generations. In spite of this 120-year national leadership, Iowa’s swine industry has been changing profoundly within the state.
Iowa State University
Honeyman, Mark S. and Duffy, Michael D.
"Iowa’s Changing Swine Industry,"
Animal Industry Report:
AS 652, ASL R2158.
Available at: https://lib.dr.iastate.edu/ans_air/vol652/iss1/64