Which statement best defines roughages?

Which statement best defines roughages?

• A. Plant material high in structural carbohydrates like cellulose and hemicellulose
• B. Plant material high in minerals
• C. Plant material high in simple sugars
• D. Plant material high in fats

Answer: (A)

Roughages are feeds that provide bulk through high fiber content, especially structural carbohydrates like cellulose and hemicellulose. This type of fiber gives bulk, promotes chewing and rumen microbial activity, and is digested more slowly, making roughages relatively low in readily digestible energy compared with concentrates. The statement describing plant material high in structural carbohydrates like cellulose and hemicellulose captures this defining feature. In contrast, feeds that are high in minerals, simple sugars, or fats are not characteristic of roughages; they align more with mineral supplements, energy-rich concentrates, or fat-rich feeds.

Roughages are feeds that provide bulk through high fiber content, especially structural carbohydrates like cellulose and hemicellulose. This type of fiber gives bulk, promotes chewing and rumen microbial activity, and is digested more slowly, making roughages relatively low in readily digestible energy compared with concentrates. The statement describing plant material high in structural carbohydrates like cellulose and hemicellulose captures this defining feature. In contrast, feeds that are high in minerals, simple sugars, or fats are not characteristic of roughages; they align more with mineral supplements, energy-rich concentrates, or fat-rich feeds.