Which of the following is considered a cause of colic?

Sudden changes in feed types or times are a well-known cause of colic in horses. When horses experience a significant dietary shift, such as changing from one type of feed to another or altering the schedule of feeding, their digestive systems can struggle to adapt. This can lead to disruptions in normal gut motility, resulting in a buildup of gas or feed impaction, both of which can cause abdominal pain referred to as colic.

The digestive system of a horse is sensitive, and consistency in diet is crucial for maintaining gut health. A sudden introduction of different grains or forages can bring about changes in gut flora, resulting in digestive disturbances. Recognizing the importance of gradual transitions in feeding practices is essential for preventing colic and ensuring the overall well-being of the animal.

Other options provided may relate to health issues commonly seen in horses, but they do not directly correlate with colic in the same way that sudden dietary changes do.