Table 8.

Effects of dietary treatments on apparent digestibility coefficients of essential amino acids in distal ileum at 35 d post-hatch.

Treatment			Arginine	Histidine	Isoleucine	Leucine	Lysine	Methionine	Phenylalanine	Threonine	Valine
Crude protein, g/kg	Feed grain	Arginine:lysine ratio
210	Wheat	104	0.896	0.842	0.843	0.845b	0.874	0.946	0.865	0.801	0.829
		110	0.892	0.831	0.839	0.837ab	0.869	0.949	0.859	0.794	0.822
	Sorghum	104	0.903	0.798	0.826	0.831ab	0.888	0.953	0.844	0.792	0.814
		110	0.904	0.788	0.811	0.817a	0.875	0.946	0.834	0.776	0.800
170	Wheat	104	0.918	0.865	0.897	0.897c	0.899	0.957	0.900	0.851	0.876
		110	0.905	0.840	0.881	0.881c	0.885	0.951	0.884	0.819	0.855
	Sorghum	104	0.925	0.792	0.865	0.830ab	0.915	0.960	0.859	0.827	0.847
		110	0.927	0.789	0.861	0.822ab	0.912	0.963	0.853	0.823	0.844
SEM			0.0049	0.062	0.0080	0.0092	0.0067	0.0037	0.0075	0.0087	0.0083
Main effects: feed grain
Wheat			0.903a	0.845b	0.866b	0.866	0.882a	0.952	0.875b	0.817	0.846b
Sorghum			0.915b	0.791a	0.841a	0.825	0.898b	0.954	0.849a	0.805	0.827a
CP, g/kg
210			0.899a	0.814	0.830a	0.832	0.876a	0.948a	0.850a	0.791a	0.816a
170			0.919b	0.822	0.876b	0.858	0.903b	0.957b	0.873b	0.823b	0.855b
Arginine:lysine ratio
104			0.911	0.825b	0.860	0.852	0.895	0.954	0.864	0.819b	0.843
110			0.907	0.812a	0.848	0.839	0.885	0.952	0.860	0.803a	0.830
Significance (P-value)
Feed grain			0.001	<0.001	<0.001	<0.001	0.002	0.348	<0.001	0.066	0.002
CP			<0.001	0.224	<0.001	<0.001	<0.001	0.001	<0.001	<0.001	<0.001
Arginine:lysine ratio			0.337	0.027	0.091	0.092	0.069	0.584	0.070	0.022	0.055
Feed grain × CP			0.518	0.097	0.759	0.001	0.233	0.078	0.218	0.717	0.874
Feed grain × arginine:lysine ratio			0.163	0.291	0.926	0.999	0.861	0.084	0.732	0.416	0.650
CP × arginine:lysine ratio			0.562	0.785	0.977	0.945	0.953	0.883	0.789	0.595	0.842
Feed grain × CP × arginine:lysine ratio			0.539	0.333	0.335	0.585	0.260	0.875	0.478	0.142	0.281

CP = crude protein.

^{a bc} Within a column, means without a common superscript differ at P < 0.05.