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Table 2 Components contributing to amino acid metabolism and retention as used in the InraPorc model

From: Concept and application of ideal protein for pigs

Item Basal endogenous, g/kg DM intake Integuments, mg/kg BW 0.75 /d Minimum turnover, mg/kg BW 0.75 /d Body protein composition, % Ideal protein, % Maximum efficiency, % 1
Lys 0.313 4.5 23.9 6.96 100 72
Met 0.087 1.0 7.0 1.88 30 64
Cys 0.140 4.7 4.7 1.03 30 37
Thr 0.330 3.3 13.8 3.70 65 61
Trp 0.117 0.9 3.5 0.95 18 57
Val 0.357 3.8 16.4 4.67 70 71
Ile 0.257 2.5 12.4 3.46 55 67
Leu 0.427 5.3 27.1 7.17 100 76
Phe 0.273 3.0 13.7 3.78 50 82
Tyr 0.223 1.9 9.0 2.86 45 67
His 0.130 1.3 10.2 2.79 32 93
Arg 0.280 0.0 0.0 6.26 42 154
Protein 8.517 104.4 361.1 - - 85
  1. 1The maximum efficiency was calculated from the ideal protein profile and the composition of body protein and components of maintenance. See [15] for details and the text for a numerical example of the calculation.