L-Threonine
Nutritional balance in practice
L-Threonine is the necessary complement of L-Lysine for which it optimizes the use by animals for body protein deposition and weight gain. Moreover, L-Threonine plays an important role in processes of maintenance and, more particularly of digestion. In practice, L-Threonine is the second limiting amino acid in feed for pigs and the third limiting amino acid in feed for poultry.
Since 1987, AJINOMOTO EUROLYSINE S.A.S. has produced and sold L-Threonine. The main characteristics of the product are described below:
| Physical description | White to pale yellow crystalline powder |
| Chemical description | |
| Molecular formula | C4H9NO3 |
| Molecular weight | 119.12 |
| Isomer | L (Levogyral) |
| Regulatory position |
| L-Threonine, which is technically pure (L-Threonine 98.5% Feed Grade) comes under Regulation (CE) 1831/2003 of 22/09/2003 relating to additives which are intended for animal feed (Official Journal of the EU n°L 268 of 18/10/2003), category: “nutritional additives”, additive group: “amino acids, their salts and analogous products” and can be used for all animal species |
| Nutritional data | |
| Dry matter | 99.5% |
| L-Threonine | 98% |
| Digestibility | 100% |
| Crude protein | 72.0% |
| ME poultry | 3570 (14.94) kcal/kg (MJ/kg) |
| DE pigs | 4140 (17.32) kcal/kg (MJ/kg) |
| ME pigs | 3790 (15.86) kcal/kg (MJ/kg) |
| NE pigs | 2950 12.34) kcal/kg (MJ/kg) |
| Range of supplementation usually observed | 0.1 to 3.0 kg/ton of compound feed |
| General specifications | |
| pH | 5.0 to 6.5 |
| Density | 0.62 to 0.66 |
| Packaging | Bags of 25 kg on wrapped palettes or "Big bags" or bulk. |
| Storage | Keep dry in closed packaging sheltered from light Avoid sources of combustion |
| Stability | - Closed bags of 25 kg from the place of origin: the product is stable for at least 3 years if it is stored in the recommended conditions - Closed "Big bags" from the place of origin: the product is stable for at least 1 year if it is stored in the recommended conditions |