The experimental objectives were to observe the feeding and economic value different grower feed, that is, commercial diet, high fiber diet, low lysine diet, low lysine-low protein diet during the growing period and also for the effect on the lad ing performance in semi-broiler breeder. The results obtained were as follows; 1. On the body weight gain and feed efficiency during the growing period, all experimental groups were responded favorably over the control group and especially low lysine B and low lysine-low protein B groups were improved 15% in weight gain and 12% in feed efficiency over the control group. 2. On the age at sexual maturity, all experimental groups were delayed for a period of 1-2 weeks. 3. As for the egg production and production efficiency during the laying periods, low lysine A and B groups were very favorably responded over the control, compared to that of other experimental groups. 4. The analysis on the economic return indicates that the return for all experimental groups was greater than that of the control the best economic return attained was for the low lysine B group with an increase of 15% over the control group.