Corn Belt farmers raised about as many early pigs last spring as they did the year before. But along in March, they began to cut back farrowings in earnest. April and May farrowings fell 14 percent below the figure of a year earlier.
Iowa Farm Science Editorial Board
Iowa Farm Science: Vol. 7
, Article 8.
Available at: https://lib.dr.iastate.edu/farmscience/vol7/iss4/8