What causes a cows stomach to bloat?

Inability to belch out gases due to build up of bubbly foam caused by eating too much grain or high-protein legumes like clover and alfalfa. Bloat is often a result of cattle being set out on a alfalfa or clover field on an empty stomach, or overloading on a favorite treat.
Inability to belch out gases due to build up of bubbly foam caused by eating too much grain or high-protein legumes like clover and alfalfa. Bloat is often a result of cattle being set out on a alfalfa or clover field on an empty stomach, or overloading on a favorite treat.