Table 2.

Amino acids composition of experimental diets (air-dry basis, %).

Item	Dietary arginine levels, %
	2.44	2.64	2.81	3.01	3.23
Essential amino acids
Arg	2.44	2.64	2.81	3.01	3.23
His	0.96	0.96	0.97	0.97	0.98
Ile	1.75	1.76	1.75	1.76	1.76
Leu	3.32	3.38	3.36	3.36	3.36
Lys	2.46	2.50	2.48	2.47	2.49
Met	0.67	0.69	0.67	0.69	0.69
Phe	1.85	1.88	1.86	1.88	1.87
Thr	1.61	1.62	1.61	1.62	1.62
Val	2.01	2.02	2.02	2.02	2.02
Non-essential amino acids
Ala	4.36	4.02	3.60	3.21	2.80
Asp	3.55	3.60	3.58	3.58	3.59
Glu	7.70	7.85	7.78	7.81	7.81
Gly	2.22	2.24	2.22	2.24	2.23
Ser	2.08	2.10	2.10	2.11	2.10
Tyr	1.16	1.20	1.15	1.18	1.18