Table 2.
The effects of different level of energy and nutrient density on growth performance and egg production in laying hens¹

Items	CON	TRT1	TRT2	TRT3	SEM2	P value
Growing
BW (g)	1,583	1,616	1,655	1,641	0.52	0.6023
ADFI (g)	80.92	81.14	80.13	80.11	0.59	0.5436
Pre-peak (11 week)
BW (g)	1,809	1,788	1,813	1,805	1.30	0.6023
ADFI (g)	89.64	92.49	89.53	91.82	1.06	0.1812
Egg production, %	70.07	67.43	68.89	62.15	3.67	0.6037
Egg weight, g	48.23	49.95	48.63	50.56	1.22	0.9596
FCR	3.053	3.368	3.150	3.094	0.173	0.4081
Peak (15 week)
BW (g)	1,889	1,840	1,864	1,887	1.35	0.6023
ADFI (g)	96.50	97.50	97.39	97.92	0.64	0.4111
Egg production (%)	90.72	93.84	93.37	89.77	2.52	0.6037
Egg weight (g)	53.56	53.93	53.89	53.94	0.58	0.4596
FCR	1.898	1.840	1.879	1.938	0.056	0.6782

Abbreviation: 1-7 weeks - CON, TRT1, TRT2, TRT3, CP: 14.5% (M+C: 0.56)/ ME: 2,710; 7-13 weeks - CON, CP: 14.5% (M+C: 0.56)/ ME: 2,710; TRT1, CP: 19% (M+C: 0.85)/ ME: 2,850; TRT2, CP: 19% (M+C: 0.85)/ ME: 2,870; TRT3, CP: 19% (M+C: 0.85)/ ME: 2,890; 13-15 weeks - CON, TRT1, TRT2, TRT3, CP: 18% (M+C: 0.80)/ ME: 2,850.
Standard error of means.