Abstract
THE phenomenon of growth in chickens is of utmost importance both from the standpoint of research and the economic production of poultry. Growth, data are widely used as a measure of experimental results and the relation of body weights to other behavior has been a field for fundamental research.At the Missouri Agricultural Experiment Station data relative to the growth of White Leghorn, Rhode Island Red, and White Rock pullets have been accumulating since 1929. From these data Kempster and Parker (1936) established normal growth curves for these breeds. By normal growth is meant growth limited by hereditary factors which birds should attain under average normal conditions. To establish a normal growth curve for a variety or strain of chickens necessitates the accumulation of data distributed throughout the growing season and over a sufficient number of years to eliminate the effects of management and uncontrollable environmental conditions.This study revealed .
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