Straw is an agricultural by-product, the dry stalks of cereal plants, after the grain and chaff have been removed.
Straw makes up about half of the yield of cereal crops such as barley, oats, rice, rye and wheat.
It has many uses, including fuel, livestock bedding and fodder, thatching and basket-making.
It is usually gathered and stored in a straw bale, which is a bundle of straw tightly bound with twine or wire.
Bales may be square, rectangular, or round, depending on the type of baler used. (source)
Can guinea pigs eat straw?
They can nibble it, however, straw it is not as good for them to eat as hay is.
Straw can be extremely sharp and can harm them if it catches them.
Do take care with it if you give it to a guinea pig.
For more foods that guinea pigs can and can’t eat, check out our guinea pig food list.