From: Dietary requirements of synthesizable amino acids by animals: a paradigm shift in protein nutrition
Amino acid | Amino acid content in the carcass2 | ARC (1981) Ref.[39]3 | Wang-Fuller (1989) Ref.[44]4,a | Chung-Baker (1992) Ref.[45]4,b | NRC (1998) Ref.[40]5,b | Baker (2000) Ref.[46]4,b |
---|---|---|---|---|---|---|
Arginine | 91 | --- | --- | 42 | 42 | 42 |
Glycine | --- | --- | --- | 100 | --- | --- |
Histidine | 47 | 33 | --- | 32 | 32 | 32 |
Isoleucine | 53 | 55 | 60 | 60 | 54 | 60 |
Leucine | 111 | 100 | 110 | 100 | 102 | 100 |
Lysine | 100 | 100 | 100 | 100 | 100 | 100 |
Met + Cys | 49 | 50 | 63 | 60c | 57e | 60c |
Phe + Tyr | 100 | 96 | 120 | 95d | 94f | 95d |
Proline | --- | --- | --- | 33 | --- | --- |
Tryptophan | 12 | 15 | 18 | 18 | 19 | 17 |
Threonine | 61 | 60 | 72 | 65 | 62 | 65 |
Valine | 72 | 70 | 75 | 68 | 68 | 68 |
Glutamate6 | --- | --- | 826 | 878 | --- | --- |