ANN-0078
QUESTION
Roughage contains how much crude fiber?
OPTIONS
(A) Less than 15%
(B) Less than 18%
(C) More than 20%
(D) More than 18%
ANSWER
(D) More than 18%
EXPLANATION
Roughages are feeds characterized by a relatively high crude-fiber concentration, conventionally more than 18%. Feeds with less than 15% or less than 18% crude fiber are generally classified as concentrates rather than roughages, while 'more than 20%' is unnecessarily restrictive.
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