On most Iowa farms, raising livestock means more income. Grain crops are ordinarily worth more when marketed as livestock products than when sold directly as a grain. Though forages help improve the soil, they have little other use than for livestock feed.
"What Kinds-How Much Livestock,"
Iowa Farm Science: Vol. 3
, Article 2.
Available at: https://lib.dr.iastate.edu/farmscience/vol3/iss10/2