Table 8.

Effect of dietary treatments on free amino acid concentrations (g/kg) in liver samples at 21 d post–hatch.

L-Methionine, g/kg	Arginine	Histidine	Isoleucine	Leucine	Lysine	Methionine	Phenylalanine	Threonine	Tryptophan	Valine
0	0.214	0.099	0.078	0.135	0.168	0.039	0.070	0.403	0.049	0.141
1.38	0.210	0.083	0.075	0.133	0.127	0.047	0.074	0.330	0.050	0.136
2.76	0.201	0.063	0.074	0.135	0.104	0.046	0.071	0.283	0.050	0.130
4.14	0.221	0.065	0.077	0.139	0.110	0.050	0.074	0.268	0.049	0.135
SEM	0.0108	0.0111	0.0041	0.0075	0.0171	0.0036	0.0044	0.0376	0.0021	0.0063
Significance (P = )	0.638	0.099	0.938	0.957	0.059	0.214	0.893	0.080	0.970	0.683
Quadratic (r = )	0.239	0.503	0.020	0.123	0.551	0.406	0.102	0.530	0.109	0.254
(P = )	0.578	0.047	0.812	0.852	0.022	0.150	0.896	0.031	0.882	0.497
L-Methionine, g/kg	Alanine	Asparagine	Aspartic acid	Glutamic acid	Glutamine	Glycine	Proline	Serine	Tyrosine	Total
0	0.562c	0.086	1.412	1.981	0.396	0.478	0.471	0.609a	0.117	7.509
1.38	0.591bc	0.088	1.251	1.788	0.381	0.421	0.443	0.401ab	0.126	6.758
2.76	0.704a	0.069	1.115	1.650	0.311	0.386	0.405	0.228b	0.129	6.165
4.14	0.672ab	0.072	1.162	1.767	0.363	0.407	0.407	0.295b	0.131	6.465
SEM	0.0278	0.0117	0.0762	0.1101	0.0487	0.029	0.0221	0.0767	0.0086	0.3892
Significance (P = )	0.005	0.566	0.058	0.233	0.641	0.175	0.135	0.012	0.645	0.121
Quadratic (r = )	0.612	0.252	0.547	0.425	0.221	0.460	0.477	0.636	0.278	0.491
(P = )	0.007	0.503	0.024	0.121	0.592	0.082	0.066	0.004	0.430	0.055

SEM = standard error of the mean.

^{a, b, c} Mean values within columns not sharing a common superscript are significantly different at the 5% level of probability.