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Table 3 Average ideal protein profiles as determined by the InraPorc and NRC models

From: Concept and application of ideal protein for pigs

Items Growing pigs, 20–140 kg Gestating sows Lactating sows
  InraPorc NRC InraPorc NRC InraPorc NRC
Met 30 29 28 28 30 26
Met + Cys 60 56 65 69 60 53
Thr 65 61 72 76 66 63
Trp 18 17 20 20 19 19
Val 70 65 75 74 85 85
Ile 55 52 65 55 60 56
Leu 100 101 100 95 115 113
Phe 50 60 60 57 60 54
Phe + Tyr 95 94 100 98 115 112
His 32 34 30 32 42 40
Arg 42 46 - 53 - 56
  1. 1Expressed as a percentage of the SID Lys requirement. See [15,25] for the InraPorc model for growing pigs and sows, respectively, and [16] for the NRC model.