Table 5.

Apparent ileal digestibility of crude protein and amino acids (AA) in basal diet or diet supplemented with 0.2 g/kg proteases for pigs (Exp. 2)

Item	Control	CC protease	SEM	p-value
Crude protein	0.68	0.74	0.012	0.01
Indispensable AA
Arginine	0.82	0.86	0.008	0.01
Histidine	0.69	0.79	0.012	<0.01
Isoleucine	0.74	0.79	0.012	0.01
Leucine	0.75	0.82	0.012	<0.01
Lysine	0.82	0.81	0.013	0.67
Methionine	0.82	0.85	0.013	0.08
Phenylalanine	0.79	0.82	0.014	0.14
Threonine	0.67	0.68	0.013	0. 60
Tryptophan	0.72	0.72	0.013	0.96
Valine	0.71	0.72	0.013	0.62
Dispensable AA
Alanine	0.67	0.74	0.017	0.02
Aspartic acid	0.75	0.76	0.011	0.38
Cystine	0.58	0.61	0.036	0.62
Glutamic	0.76	0.79	0.022	0.28
Glycine	0.52	0.52	0.027	0.82
Proline	0.71	0.68	0.050	0.63
Serine	0.73	0.75	0.012	0.25
Tyrosine	0.71	0.81	0.028	0.03

CC protease, coated compound proteases; SEM, standard error of the mean.