Hay is grass, legumes, or other herbaceous plants that have been cut, dried, and stored for use as animal fodder, particularly for grazing animals such as cattle, horses, goats, and sheep.
Hay is also fed to smaller animals such as rabbits and guinea pigs.
Pigs may be fed hay, but they do not digest it as efficiently as fully herbivorous animals. (source)
Can Guinea Pigs Eat Hay?
Yes they can chew on it. The best type of hay for guinea pigs to eat is timothy hay or meadow hay.
For more foods that guinea pigs can and can’t eat, check out our guinea pig food list