Feedlots use corn to fatten the beef herd before slaughter. Feeding a high corn diet to cattle can cause acidosis of the Rumen stomach (one the four compartments in cattle stomachs).

You can prevent this through feeding a more balanced feed mix however this slows down the fattening process.

Acidosis can cause the stomach to rupture. Antibiotics are used to help control this and deal with side effects of acidosis.