Which of the following is a type of roughage for ponies?

Hay is a type of roughage that is essential for ponies and other grazing animals. It consists of dried grasses or legumes, providing necessary fiber that aids in digestion and promotes healthy gut function. Roughage is crucial for maintaining a pony's overall health, as it supports proper digestion and prevents issues like colic.

Feeding ponies sufficient roughage helps mimic their natural grazing behavior, allowing them to chew and process their food effectively, which can also play a role in dental health. In contrast, barley and maize are grains and are typically higher in energy and starch, not serving as roughage. Pony nuts, while they may provide nutrition as a concentrated feed, do not offer the same fibrous qualities as hay.