Which of the following is a roughage?

• A. Hay
• B. Corn
• C. Field where animals graze
• D. High energy feed

Answer: (A)

Roughage is the fiber-rich part of a diet that provides bulk and helps keep the digestive system functioning, especially in ruminants. Hay fits this because it is dried forage—typically grasses or legumes—with high fiber content used to fulfill daily roughage needs and promote proper chewing and rumen activity. Corn, by contrast, is a grain high in energy but low in fiber, so it acts as a concentrate rather than roughage. A field where animals graze isn’t a feed item itself, though grazing provides forage; it’s not a specific roughage product like hay. High energy feed is also a concentrate, not roughage. So hay is the roughage.