For horses working at 'C' level, what percentage of the diet should be in roughage?

For horses working at 'C' level, the recommended percentage of roughage in their diet is crucial for maintaining proper digestive health and overall well-being. Roughage, primarily consisting of hay and pasture, is essential for horses as it aids in digestion, promotes a healthy gut environment, and provides the necessary fiber that horses need for normal digestive function.

When roughage comprises 70-100% of a horse's diet, it ensures that they receive sufficient fiber to stimulate gut motility and prevent digestive disorders such as colic and laminitis. Roughage is also vital for maintaining a healthy weight and providing necessary nutrients without an excessive caloric intake that can come from more concentrated feeds like grains.

While other options suggest lower levels of roughage, they may not provide the ideal balance for horses at 'C' level, who typically engage in moderate levels of work and require a diet that supports both energy needs and digestive health. Therefore, a diet that includes 70-100% roughage aligns best with the nutritional requirements for these horses.