| Name | Unit | Unit | Definition |
|---|---|---|---|
| Lysine | g/kg | g/16g N |
Lysine, an amino acid. It is the first limiting amino acid for pigs and the second one after sulfur amino acids (methionine + cystine) for poultry. Lysine is with methionine the first or second limiting amino acid in ruminants. |
| Threonine | g/kg | g/16g N |
Threonine, an amino acid. It is the second limiting amino acid after lysine for pigs and the third one after sulfur amino acids (methionine + cystine) and lysine for poultry. |
| Methionine | g/kg | g/16g N |
Methionine, a sulfur amino acid. It is an essential and limiting amino acid for pigs (as the sum methionine + cystine), poultry and ruminants. |
| Cystine | g/kg | g/16g N |
Cystine is the oxidized dimer form of the amino acid cysteine. The sum methionine + cystine is the second limiting amino acid in pigs. |
| Methionine + cystine | g/kg | g/16g N |
Sum of the sulfur amino acids methionine and cystine. The sum is essential and limiting in pigs. |
| Tryptophan | g/kg | g/16g N |
Tryptophan, a amino acid. Tryptophan is a essential and limiting amino acid in pigs and poultry, and is an essential amino acid in ruminants. |
| Isoleucine | g/kg | g/16g N |
Isoleucine, a branched amino acid. Isoleucine is essential and can be limiting in ruminants and is essential in pigs and poultry (though usually not limiting). |
| Valine | g/kg | g/16g N |
Valine, a branched amino acid. Valine is usually the 5th limiting amino acid after tryptophan for pigs and the 4th one after threonine for broilers. It can also be limiting in ruminants. |
| Leucine | g/kg | g/16g N |
Leucine, a branched amino acid. It is essential (but usually not limiting) in poultry and can be limiting in ruminants. |
| Phenylalanine | g/kg | g/16g N |
Phenylalanine, an amino acid. The sum phenylalanine + tyrosine is limiting in pigs. |
| Tyrosine | g/kg | g/16g N |
Tyrosine, an amino acid. The sum phenylalanine + tyrosine is limiting in pigs. |
| Phenylalanine + tyrosine | g/kg | g/16g N |
Sum of the amino acids phenylalanine and tyrosine. The sum phenylalanine + tyrosine is limiting in pigs. |
| Histidine | g/kg | g/16g N |
Histidine, an amino acid. Histidine is an essential amino acid in pigs, poultry and ruminants, but usually not a limiting one. |
| Arginine | g/kg | g/16g N |
Arginine, an amino acid. Arginine is an essential amino acid in pigs, poultry and ruminants, and can be limiting in poultry and ruminants. |
| Alanine | g/kg | g/16g N |
Alanine, a non-essential amino acid. |
| Aspartic acid | g/kg | g/16g N |
Aspartic acid, a non-essential amino acid. |
| Glutamic acid | g/kg | g/16g N |
Glutamic acid, a non-essential amino acid. |
| Glycine | g/kg | g/16g N |
Glycine, an amino acid. Glycine is essential for ruminants but not limiting. |
| Serine | g/kg | g/16g N |
Serine, a non-essential amino acid. |
| Proline | g/kg | g/16g N |
Proline, a non-essential amino acid. |