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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.