The Fifteenth Amendment to the United States Constitution prohibits each government in the United States from denying a citizen the right to vote based on that citizen's race, color, or previous condition of servitude. 1  Listen to sample songs.
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.
The most common cause of gastric dilatation in horses is excessive gas or intestinal obstruction. Gastric dilatation may be associated with overeating fermentable feedstuffs such as grains, lush grass, and beet pulp. Presumably, the large increase in production of volatile fatty acids inhibits gastric emptying.