
Article 1 
The substance specified in the Annex, belonging to the additive category ‘nutritional additives’ and to the functional group ‘amino acids, their salts and analogues’, is authorised as an additive in animal nutrition subject to the conditions laid down in that Annex.
Article 2 
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union.
This Regulation shall be binding in its entirety and directly applicable in all Member States.Done at Brussels, 4 February 2014.
For the Commission
The President
José Manuel BARROSO
ANNEX

Identification number of the additive Name of the holder of authorisation Additive Composition, chemical formula, description, analytical method Species or category of animal Maxi-mum age Minimum content Maximum content Other provisions End of period of authorisation
mg/kg complete feed with a moisture content of 12 %
Category of nutritional additives. Functional group: amino acids, their salts and analogues
3c401 — L-tyrosine 
 Additive composition
Powder produced by hydrolysis of keratin from poultry feathers with a minimum L-tyrosine content of 95 %
 Characterisation of the active substance
IUPAC name: (2S)-2-amino-3-(4-hydroxyphenyl)propanoic acid
CAS number: 60-18-4
Chemical formula: C9H11NO3
 Analytical methods
For the determination of L-tyrosine in the feed additive:
Titrimetry, European Pharmacopoeia (Ph. Eur. 6.0, method 01/2008-1161).
For the determination of L-tyrosine in premixtures, compound feed and feed materials:
Ion exchange chromatography method with post-column derivatisation and photometric detection: Commission Regulation (EC) No 152/2009 (Annex III, F). All species — — — 
1.. For user safety: breathing protection, safety glasses and gloves should be worn during handling.
2.. The instructions of use shall include a recommendation that the content of L-tyrosine does not exceed 5 g/kg complete feed with a moisture content of 12 % for food-producing animals and 15 g/kg complete feed with a moisture content of 12 % for non-food-producing animals. 25 February 2024

