In any supplementation program, it is essential that the forage resource be stocked in such a manner so there is adequate forage quantity available per animal unit. If forage quantity is insufficient, then the supplementation program will be ineffective. The object of supplementation programs (usually protein supplements) are to match deficiencies in forage quality in such a manner as to increase passage rate of forage and thus increase forage intake of the cow.
Matching Forage Resources with Cow Herd Supplementation
The University of Arizona, College of Agriculture and Life Sciences, Arizona Cooperative Extension