The old standby, oat straw, is often scarce by late winter. Iowa State University dairy workers have been evaluating high yielding crops like sudangrass, sudan-sorghum crosses and close-drilled corn as bedding materials.
Foreman, C. F. and Porter, A. R.
"Another Soruce of Bedding for Cattle,"
Iowa Farm Science: Vol. 19
, Article 5.
Available at: https://lib.dr.iastate.edu/farmscience/vol19/iss12/5