|a1=Grain overload. Grain engorgement results in rapid fermentation and the production of large amounts of lactic acid, volatile fatty acids and gas in the gastrointestinal tract, leading to gastrointestinal atony and distension. <br><br> | |a1=Grain overload. Grain engorgement results in rapid fermentation and the production of large amounts of lactic acid, volatile fatty acids and gas in the gastrointestinal tract, leading to gastrointestinal atony and distension. <br><br> |