cause of twisted intestine in a horse
A rich diet fed infrequently or a sudden change to rich grass are the most common causes of gassy or spasmodic colic whereas impactions are usually caused by inactive horses on box rest and eating a straw bed. More severe forms of colic, such as a twisted or entrapped piece of intestine, are less predictable. There is not usually a clear cause and they are less likely to be caused by poor management. It was once thought that the act of a horse rolling causes the intestine to twist but that is now known to be wrong.