Table 2.

Quintile means for variables related to diet in the dataset

Item1	Quintile2					SEM3
	1	2	3	4	5
Number of pens	149	150	149	150	149	—
Diet NEm, Mcal/kg	2.20	2.19	2.19	2.19	2.20	0.015
Predicted NEm, Mcal/kg	2.27a	2.16b	2.11c	2.06d	1.97e	0.007
NEm residual	−0.159a	−0.046b	0.004c	0.057d	0.145e	0.0072
Diet NEg, Mcal/kg	1.52	1.51	1.51	1.51	1.51	0.014
Predicted NEg, Mcal/kg	1.58a	1.48b	1.44c	1.39d	1.32e	0.006
NEg residual	−0.143a	−0.043b	0.001c	0.047d	0.124e	0.0063
Diet crude protein, %	13.41	13.41	13.41	13.41	13.41	0.003
Diet ether extract, %	4.78	4.78	4.78	4.78	4.78	0.000
Diet acid detergent fiber, %	9.93	9.93	9.92	9.92	9.92	0.006

¹Predicted NEm and NEg values were calculated from performance data using the methods of Zinn and Shen (1998).

²Quintles are based on NEm residuals (formulated NEm minus growth performance-predicted NEm), where Quintile 1 has the most negative differences and Quintile 5 has the most positive differences.

³Standard error of quintile means. The largest SEM value is reported.

^a,b,c,d,eRow means that do not have the same superscript differ, P < 0.05.