Iowa farmers can expect satisfactory results when Iowa-produced hydrol is fed to dairy cows.
Jacobson, N. L.; Wise, George H.; Cannon, C. Y.; and Owen, Foster
"New Use for a Corn By-product,"
Iowa Farm Science: Vol. 4
, Article 7.
Available at: https://lib.dr.iastate.edu/farmscience/vol4/iss7/7