Table 7.

ATTD of GE and DE and ME in experimental diets fed to pigs^a, as-fed basis (Exp. 2)

Item, %	Basal diet	Soybean hulls		SEM	P value
		Nonextruded	Extruded
Feed intake, kg/d	2.07	2.19	2.17	0.07	0.452
GE intake, Mcal/d	7.95	8.44	8.37	0.28	0.427
Dry feces output, kg/d	0.19b	0.45a	0.48a	0.03	<0.001
Feces GE output, kcal/d	914b	2,008a	2,138a	116	<0.001
ATTD of GE, %	88.5a	76.2b	74.7b	0.9	<0.001
DE in diet, kcal/kg	3,402a	2,937b	2,877b	33	<0.001
Urine output, kg/d	8.80	7.84	11.07	1.73	0.385
Urine GE output, kcal/d	268	227	252	31	0.608
ME in diet, kcal/kg	3,273a	2,833b	2,759b	37	<0.001

^a,bWithin a row, means without a common superscript differ (P < 0.05).

^aEach least squares mean represents eight observations.