Effect of Body Weight on the Biological Value of Proteins for Growing Swine

Abstract

Data are presented to show that the biological value of protein fed at a level of 10% decreases as pigs increase in body weight. It is suggested that studies on biological value of protein for growing pigs be designed to permit analyses by covariance as a means of measuring the collective errors introduced by variables associated with advancing weight and age. Comparisons of data from various studies may then be made without confounding with these factors. Copyright © . .