Amino Acids



L-threonine is the second limiting amino acid in the diet of pigs and the third limiting amino acid in the breeding of poultry. 

Product specifications & properties

  • Threonine content: min. 98.5%  
  • Loss on drying: max. 1.%  
  • Appearance: white or light brown powder
  • Type of synthesis: fermentation 
  • Additional testing: additional testing in an external laboratory according to P 04 A 01
  • Storage: no special advice, store in dry conditions in sealed or closed containers and protect from light and heat
  • Stability: 3 years
  • Packaging: 25 kg bags, 800 kg to 1,000 kg big bags, or in silo lorries

Regulatory status

Feed additive, category: amino acids, their salts and analogues

Manufacturing and supply

WELDING is one of the largest importers of L-threonine (EU Code 3c410) in Europe and a major exporter of Chinese threonine to the overseas markets.


Welding GmbH & Co. KG is not the manufacturer of the product. All product information and analytical data serves only as a product description and has been provided to us by the manufacturer. It may not be interpreted as a guarantee of special properties or a guarantee of suitability for specific purposes. The customer is required to examine the suitability of the product for the intended purpose himself/herself before use.