Calves from 3 farms exhibited blindness, head pressing, and circling before
death. Brain lesions confirmed polioencephalomalacia. Excess sulfur was fo
und in the diets on all 3 farms in corn by-products or molasses based suppl
ements. Corn gluten feed and corn steep liquor (by-products of the refineme
nt of corn for ethanol), corn syrup, corn gluten, coin oil, and corn starch
have gained popularity as livestock feeds due to their low prices. With th
is increased usage as livestock feed, increasing number of cases of polioen
cephalomalacia have been seen.