Nutritional quality of protein was studied using a regression equation
for predicting protein efficiency ratio (PER) of meats from the chemi
cal analysis of collagen content. Estimated PER values for all meat sa
mples, calculated from the amounts of collagen, ranged from 2.22 to 2.
91, which are in close agreement with reported rat PER values. The res
ults showed that the collagen content can be employed to provide a rap
id, inexpensive and easily adaptable assay for the estimation of prote
in quality of meats.