Table 2. Growth performance in WMD2 breeder pullets in response to dietary level of metabolizable energy

Groups	2,600	2,700	2,800	2,900	SEM	P value
4–8 weeks of age
BW (g)	867^b	882^b	898^ab	934^a	8.48	0.013
WG (g)	592^b	606^b	621^ab	658^a	8.39	0.016
FI (g)	1,735	1,700	1,723	1,762	15.8	0.619
FCR	2.93	2.81	2.78	2.68	0.036	0.085
9–12 weeks of age
BW (g)	1,571^c	1,620^bc	1,673^ab	1,725^a	17.3	0.001
WG (g)	1,081^c	1,144^b	1,191^ab	1,223^a	16.2	0.001
FI (g)	2,684	2,683	2,684	2,743	12.9	0.277
FCR	2.48^a	2.35^b	2.26^b	2.24^b	0.030	0.002
13–16 weeks of age
BW (g)	2,206^b	2,318^ab	2,365^a	2,427^a	27.5	0.014
WG (g)	965	1,045	1,091	1,064	20.9	0.160
FI (g)	3,298	3,318	3,280	3,205	36.2	0.752
FCR	3.42^a	3.18^ab	3.03^b	3.01^b	0.058	0.021
Total (4–16 weeks of age)
BW (g)	2,206^b	2,318^ab	2,365^a	2,427^a	27.5	0.014
WG (g)	1,932^b	2,043^ab	2,088^a	2,151^a	27.4	0.015
FI (g)	7,716	7,701	7,687	7,710	52.3	0.998
FCR	4.00^a	3.77^b	3.68^bc	3.58^c	0.045	0.003

Means sharing different superscripts differ significantly (P<0.05). BW, body weight; WG, weight gain; FI, feed intake; FCR, feed conversion ratio; SEM, standard error of the mean.