Table 6.

Effects of dietary treatments on parameters of nutrient utilisation and excreta dry matter from 32 to 34 d post–hatch.

Item			AME, MJ/kg DM	ME:GE ratio, MJ/MJ	N retention, %	AMEn, MJ/kg DM	Excreta dry matter, g/kg
Diet	Crude protein, g/kg	Mode
1A (PC)	215.0		12.65	0.753	61.80	11.98	268
2B	197.5	Standard	12.60	0.763	64.25	11.98ab	255b
5E	197.5	Modified	12.53	0.767	62.31	12.00ab	279c
3C	180.0	Standard	12.67	0.783	62.74	12.23b	237ab
6F	180.0	Modified	12.25	0.766	58.84	11.90a	291c
4D	162.5	Standard	12.83	0.808	60.64	12.53c	223a
7G	162.5	Modified	12.14	0.774	58.09	11.82a	288c
SEM	0.1301	0.0084	1.0747	0.1006	7.912
Main effect: Crude protein
197.5			12.48	0.765a	63.28b	11.99	267
180.0			12.46	0.775ab	60.79a	12.07	264
162.5			12.57	0.791b	59.63a	12.17	255
Mode
Standard			12.70b	0.785b	62.54b	12.25	238
Modified			12.31a	0.769a	59.75a	11.91	286
Significance (P-value)
Crude protein (CP)			0.674	0.012	0.003	0.192	0.332
Mode (M)			<0.001	0.028	0.003	<0.001	<0.001
CP × M interaction			0.061	0.073	0.645	0.003	0.035
Pair-wise comparisons (P-value)
1A versus 2B			0.795	0.448	0.099	0.971	0.253
1A versus 5E			0.554	0.262	0.725	0.913	0.358
2B versus 5E			0.739	0.714	0.190	0.885	0.042

AME = apparent metabolizable energy; GE = gross energy; N = nitrogen; AMEn = N-corrected AME; PC = positive control.

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