The general symptoms are very much like those belonging to other acute infectious or bacterial diseases.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Silage, properly cured, does not belong to this class, because the curing of silage is not a bacterial process.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
In most cases it is poison naturally belonging in the plant; in other cases the poisonous principle is developed in what would otherwise be harmless plants as a plant disease, or as a fermentation or putrefaction due to bacterial growth and observed in forage, grain, or meal that has become heated, damaged, or "spoilt."
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler