The data in Table 5 show that protein content of the
diet did not affect rate of egg production, egg mass per
day, or ash and nitrogen retention. The retention of ash
was approximately 5 g and the retention of nitrogen
was approximately 1 g. The DM of whole eggs was
approximately 30.5%, ash content of the DM was approximately
31%, and nitrogen content of the DM was
approximately 6.31%. Period of the experiment had a
significant effect (P < 0.01) on all criteria shown in
Table 5.