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Table 5 Effects of dietary treatments on concentrations (nmol/L) of free essential amino acids in plasma from the portal circulation (anterior mesenteric vein) at 35 d post-hatchd

From: Influence of starch sources and dietary protein levels on intestinal functionality and intestinal mucosal amino acids catabolism in broiler chickens

Treatment Arginine Histidine Isoleucine Leucine Lysine Methionine Phenyl-
alanine
Threonine Tryptophan Valine
Starch Protein
Waxy rice High 394 71a 114ab 327cd 234a 90ab 190 493 73 205bc
Low 514 60a 121b 186a 264ab 113b 149 766 79 167ab
Maize High 388 100b 126b 349d 227a 92ab 200 553 70 233c
Low 365 58a 80a 220ab 194a 96ab 139 761 71 132a
Amylose High 336 64a 112ab 295cd 218a 74b 187 578 72 174ab
Low 455 71a 118b 270bc 347b 151c 180 951 83 181b
SEM 16.96 3.87 4.93 12.68 13.85 6.04 6.54 49.53 2.06 8.15
Main effects: Starch
 Waxy rice 454 66 117 256 249 102 170 630 76 186
 Maize 377 79 103 285 210 94 169 657 70 183
 Amylose 396 68 115 282 282 112 183 765 78 178
Protein
 High 373a 78 117 324 226 85 192b 541a 72 204
 Low 445b 63 106 225 268 120 156a 826b 77 160
Significance (P-value)
 Starch 0.099 0.162 0.379 0.298 0.064 0.264 0.520 0.452 0.335 0.853
 Protein 0.020 0.018 0.244 < 0.001 0.095 0.001 0.004 0.004 0.179 0.002
 Starch × Protein 0.082 0.008 0.031 0.010 0.034 0.008 0.155 0.752 0.585 0.004
  1. dValues are the mean and pooled standard error of the mean (SEM), n = 6 chicken/group
  2. a-cmeans within each group with different letter designations differ (P < 0.05)