1. Tennessee Farmers Cooperative, La Vergne, 37086
2. Department of Animal Science, University of Minnesota, St. Paul, 55108
3. Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, 55108
4. Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, 55108
5. University of Minnesota Extension, Willmar, 56201