Why do cows bloat on alfalfa or clover pastures but not on bluegrass? Is there something in clover or alfalfa and not in bluegrass or other grass pastures that causes bloat?
Espe, Dwight; Jacobson, Norman L.; and Cannon, Clawson Y.
"Why Do Cows Bloat?,"
Farm Science Reporter: Vol. 4
, Article 5.
Available at: http://lib.dr.iastate.edu/farmsciencereporter/vol4/iss2/5