Table 5.

Effects of dietary treatments on growth performance from 7 to 35 d post–hatch, mortality rates, relative fat-pad weights and feather scores.

Item			Weight gain, g/bird	Feed intake, g/bird	FCR, g/g	Mortalities1, %	Fat-pad weights, g/kg	Feather scores
Diet	Crude protein, g/kg	Mode
1A (PC)	215.0		2,159	3,496	1.627	8.33	6.50	1.8
2B	197.5	Standard	1,958	3,387	1.684	2.08	8.37bc	1.9
5E	197.5	Modified	2,161	3,492	1.616	6.25	8.15b	1.9
3C	180.0	Standard	1,451	2,717	1.878	0.00	8.14b	3.1
6F	180.0	Modified	1,437	2,963	2.066	4.17	8.74bc	2.8
4D	162.5	Standard	1,010	2,433	2.426	0.00	6.79a	3.7
7G	162.5	Modified	1,005	2,532	2.554	0.00	9.63c	2.6
SEM			48.18	59.25	0.0671	1.875	0.4562	0.476
Main effect: Crude protein
197.5			2,063c	3,389c	1.650a	4.17	8.26	1.9a
180.0			1,444b	2,840b	1.972b	2.08	8.41	2.9b
162.5			1,008a	2,482a	2.490c	0.00	8.26	3.1c
Mode
Standard			1,471	2,812a	1.996	0.70	7.77	2.9
Modified			1,535	2,995b	2.076	3.47	8.84	2.4
Significance (P-value)
Crude protein (CP)			<0.001	<0.001	<0.001	0.097	0.866	0.031
Mode (M)			0.140	<0.001	0.140	0.077	0.006	0.230
CP × M interaction			0.059	0.448	0.150	0.446	0.005	0.450
Pair-wise comparisons (P-value)
1A versus 2B			0.010	0.017	0.527	0.074	0.005	0.891
1A versus 5E			0.969	0.959	0.910	0.546	0.012	0.842
2B versus 5E			0.009	0.019	0.456	0.229	0.725	0.949

PC = positive control.

^{a, b, c} Within a column, means not sharing a common superscript are significantly different at P < 0.05.

¹Overall mortality rate: 2.98% (SEM = 2.417; P = 0.092).