This study aims to determine the times when chickens need feed through improved feed management with frequency (F) and period (P) feeding. This study used 252 super 1 day old free-range chickens with an average initial weight of 37.88 ± 1.89 grams. The feed used is commercial feed. The study used a split plot design, where the main plot was in the form of frequency of feeding (1 time / day, 2 times / day and 3 times / day) and sub-plot was in the form of feeding period (14 hours, 16 hours and 18 hours) so that there were 36 treatment combinations altogether. The parameters measured include the relative weight of lymphoid organs (thymus, spleen, bursa of fabricius and liver). The data obtained were observed diversity at 5% level. The results of the study showed that there was no effect of frequency and feeding period on the relative weights of the spleen, thymus and the fissile exchanges. The conclusion of this study is that the frequency and period of feeding did not increase the relative weight of lymphoid organs.