Table 4.

Apparent total tract digestibility (ATTD) and metabolizability of GE in experimental diets fed to growing pigs in Exp. 1¹

	Diet2						P-value3
		DY, %		SBM, %			DY		SBM
Item	RD	5	10	5	10	SEM	L	Q	L	Q
Feed intake, g/d	772	775	806	824	818	30.3	0.437	0.714	0.292	0.439
GE intake, kcal/d	3,144	3,172	3,354	3,367	3,338	123.9	0.245	0.617	0.282	0.417
Feces output, g/d	123	133	138	134	132	7.0	0.150	0.793	0.382	0.469
GE in feces, kcal/kg	4,434	4,486	4,602	4,461	4,418	20.6	<0.001	0.211	0.588	0.178
Fecal GE output, kcal/d	547	596	635	597	583	31.1	0.060	0.903	0.426	0.409
DE intake, kcal/d	2,597	2,576	2,719	2,769	2,755	100.8	0.402	0.515	0.281	0.457
ATTD of GE, %	82.7	81.2	81.1	82.3	82.5	0.57	0.065	0.334	0.872	0.629
DE in diet, kcal/kg	3,369	3,324	3,377	3,361	3,368	23.6	0.831	0.107	0.977	0.791
DE in diet, kcal/kg DM	3,818	3,773	3,816	3,808	3,811	26.7	0.952	0.199	0.865	0.849
Urine output, g/d	936	1,029	1,287	1,045	739	182.2	0.188	0.718	0.455	0.362
GE in urine, kcal/kg	74.8	98.3	80.1	88.5	116.9	18.79	0.844	0.376	0.129	0.753
Urinary GE output, kcal/d	59.9	77.1	95.7	79.8	76.0	9.97	0.020	0.952	0.270	0.345
ME intake, kcal/d	2,537	2,499	2,623	2,690	2,679	98.7	0.544	0.510	0.322	0.506
Metabolizability of GE, %	80.7	78.8	78.2	79.9	80.3	0.51	0.003	0.275	0.549	0.341
ME in diet, kcal/kg	3,290	3,225	3,257	3,264	3,276	21.1	0.281	0.075	0.650	0.472
ME in diet, kcal/kg DM	3,728	3,661	3,680	3,698	3,707	23.8	0.175	0.153	0.544	0.522

¹Each least squares mean represents 6 observations.

2RD, reference diet; DY, dried yeast; SBM, soybean meal.

3L, linear effect; Q, quadratic effect.