Table 4.

Apparent total tract digestibility (ATTD) of nutrients and energy and concentration of digestible energy (DE) in experimental diets (Exp. 1)¹

Item	Diet2			SEM	P-value
	Basal	SDPP 1	SDPP 2
ATTD, %
Dry matter	91.1b	92.8a	92.5a	0.3	0.005
Organic matter	92.4b	94.1a	93.8a	0.3	0.004
Gross energy	90.4b	92.5a	92.0a	0.4	0.004
Ash	74.5	76.5	76.5	1.0	0.187
DE, kcal/kg (as-fed basis)	3,441b	3,635a	3,597a	16	<0.001
DE, kcal/kg (dry matter basis)	3,843c	4,053a	3,970b	18	<0.001

¹Data are least squares means of 8 observations except for the spray-dried plasma protein (SDPP) 1 diet (7 observations).

²Spray-dried plasma protein 1 was sourced from APC Inc. (Ankeny, IA); SDPP 2 was sourced from NongHyup Feed Inc., LTD. (Seoul, Korea).

^a–cWithin a row, means without a common superscript letter differ (P < 0.05).