Commission Implementing Regulation (EU) 2025/160 of 29 January 2025 concerning the authorisation of L-threonine produced with Escherichia coli CGMCC 7.455 as a feed additive for all animal species
Date: 2025-01-29
Institutions: Directorate-General for Health and Food Safety, European Commission
Subjects: amino acid, animal feedingstuffs, drinking water, food additive, market approval, microorganism








L_202500160EN.000101.fmx.xml












Official Journal of the European Union


EN
L series













2025/160


30.1.2025







            COMMISSION IMPLEMENTING REGULATION (EU) 2025/160
of 29 January 2025
         
concerning the authorisation of L-threonine produced with Escherichia coli CGMCC 7.455 as a feed additive for all animal species
(Text with EEA relevance)


THE EUROPEAN COMMISSION,

Having regard to the Treaty on the Functioning of the European Union,


Having regard to Regulation (EC) No 1831/2003 of the European Parliament and of the Council of 22 September 2003 on additives for use in animal nutrition (1), and in particular Article 9(2) thereof,

Whereas:







(1)


Regulation (EC) No 1831/2003 provides for the authorisation of additives for use in animal nutrition and for the grounds and procedures for granting such an authorisation.












(2)


In accordance with Article 7 of Regulation (EC) No 1831/2003, an application was submitted for the authorisation of L-threonine produced with Escherichia coli CGMCC 7.455. That application was accompanied by the particulars and documents required under Article 7(3) of Regulation (EC) No 1831/2003.












(3)


The application concerns the authorisation of L-threonine produced with Escherichia coli CGMCC 7.455 as a feed additive for use in feed and in water for drinking for all animal species, requesting that additive to be classified in the category ‘nutritional additives’ and in the functional group ‘amino acids, their salts and analogues’.












(4)


The European Food Safety Authority (‘the Authority’) concluded in its opinion of 12 March 2024 (2) that, under the proposed conditions of use, L-threonine produced with Escherichia coli CGMCC 7.455 is safe for the target species. However, the Authority has concerns on the safety of the substance for the target species resulting from the simultaneous administration of L-threonine via water for drinking and feed due to possible amino acid imbalances and hygienic reasons. The use of L-threonine produced with E. coli CGMCC 7.455 in animal nutrition is considered safe for the consumers and for the environment. In the absence of data, the Authority could not conclude on the potential of the additive to be irritant to skin or eyes, or on its potential to be a dermal sensitiser. Regarding the endotoxin activity in the additive the Authority concluded that it does not pose a risk for the user via inhalation. The Authority further concluded that the substance is regarded as an efficacious source of the essential amino acid L-threonine for non-ruminant species and that for the substance to be fully efficacious in ruminants, it should be protected against degradation in the rumen. The Authority did not consider that there is a need for specific requirements of post-market monitoring. It also verified the report on the method of analysis of the feed additive in feed submitted by the Reference Laboratory set up by Regulation (EC) No 1831/2003.












(5)


In view of the above, the Commission considers that L-threonine produced with Escherichia coli CGMCC 7.455 satisfies the conditions provided for in Article 5 of Regulation (EC) No 1831/2003. Accordingly, the use of that substance as a feed additive should be authorised. When fed to ruminants, L-threonine needs to be protected against degradation in the rumen. It is appropriate to alert the user to take into account the dietary supply with all the essential and conditionally essential amino acids, in particular in the case of supplementation with L-threonine via water for drinking. In addition, the Commission considers that appropriate protective measures should be taken to prevent adverse effects on the health of the users of the additive.












(6)


The measures provided for in this Regulation are in accordance with the opinion of the Standing Committee on Plants, Animals, Food and Feed,





HAS ADOPTED THIS REGULATION:



Article 1

Authorisation

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

Entry into force

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, 29 January 2025.


For the Commission


The President

Ursula VON DER LEYEN
            





(1)  
            OJ L 268, 18.10.2003, p. 29, ELI: http://data.europa.eu/eli/reg/2003/1831/oj.

(2)  
            EFSA Journal, 22(4), e8708.




ANNEX













Identification number of the feed additive


Additive


Composition, chemical formula, description, analytical method


Species or category of animal


Maximum age


Minimum content


Maximum content


Other provisions


End of period of authorisation




mg/kg of complete feed with 12 % moisture content





Category: nutritional additives. Functional group: amino acids, their salts and analogues





3c412


L-threonine



Additive composition

Powder with a minimum of 98,5 % L-threonine and a maximum moisture content of 1 %

Characterisation of the active substance

L-threonine produced with Escherichia coli CGMCC 7.455
Chemical formula: C4H9NO3

CAS number: 72-19-5

Analytical method
 (1)

For the identification of L-threonine in the feed additive:






—


Food Chemical Codex ‘L-threonine monograph’




For the determination of threonine in the feed additive:






—


Ion-exchange chromatography coupled to post-column derivatisation and optical detection (IEC-VIS/FLD) – EN ISO 17180




For the determination of threonine in premixtures:






—


Ion-exchange chromatography coupled to post-column derivatisation and optical detection (IEC-VIS/FLD) – EN ISO 17180 or










—


Ion-exchange chromatography coupled to post-column derivatisation and optical detection (IEC-VIS) – Commission Regulation (EC) No 152/2009 (2)





For the determination of threonine in compound feed:






—


Ion-exchange chromatography coupled to post-column derivatisation and optical detection (IEC-VIS) – Regulation (EC) No 152/2009




For the determination of threonine in water:






—


Ion-exchange chromatography coupled to post-column derivatisation and optical detection (IEC-VIS or IEC-VIS/FLD)






All animal species


–


–


–








1.


In the directions for use of the additive and premixtures, the storage conditions, the stability to heat treatment and in water shall be indicated.










2.


The additive may be used via water for drinking.










3.


Feed business operators shall ensure that L-threonine is rumen protected, when fed to ruminants.










4.


The labelling of the additive and premixtures shall indicate the following:






—


‘The supplementation with L-threonine, in particular via water for drinking, shall take into account all essential and conditionally essential amino acids in order to avoid imbalances.’














5.


For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address potential risks resulting from their use. Where those risks cannot be eliminated by such procedures and measures, the additive and premixtures shall be used with personal skin, eye and breathing protective equipment.






19 February 2035






(1)  Details of the analytical methods are available at the following address of the Reference Laboratory: https://joint-research-centre.ec.europa.eu/eurl-fa-eurl-feed-additives/eurl-fa-authorisation/eurl-fa-evaluation-reports_en.

(2)  Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (OJ L 54, 26/02/2009, p. 1, ELI: http://data.europa.eu/eli/reg/2009/152/oj).



ELI: http://data.europa.eu/eli/reg_impl/2025/160/oj
ISSN 1977-0677 (electronic edition)