Polioencephalomalacia

Polioencephalomalacia (polio) in ruminants is caused by a thiamine deficiency and/or sulfur toxicity. Other causes include improper feeding, feeding too much grain, or anything that disrupts the health and well being of rumen microbes, such as chronic or acute acidosis or indigestion. The disease is seen more in winter in North America, primarily due to increased grain feeding to meet increased …