Date: 2025-12-12Category: Not ApplicableState: Union GovernmentCountry: Europe
Commission Implementing Regulation (EU) 2025/2511 of 11 December 2025 concerning the authorisation of a preparation of Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903 as a feed additive for ruminants for milk production/reproduction (holder of authorisation: Chr. Hansen A/S)
Issued by European Commission
· Directorate-General for Health and Food Safety
**Executive Summary**
This document is Commission Implementing Regulation (EU) 2025/2511, dated 11 December 2025, authorising the use of Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903 as a feed additive for ruminants for milk production/reproduction. The regulation enters into force on the twentieth day following its publication in the Official Journal of the European Union. The authorisation period ends on 1 January 2036.
**Key Points / Main Content**
* **Authorisation:**
* The preparation of Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903 is authorized as a zootechnical additive (gut flora stabiliser) in animal nutrition.
* The additive can be used in feed and water.
* **Conditions of Use:**
* Minimum content in complete feed: 3.8 x 10^8 CFU/kg
* Maximum content in drinking water: 7.4 x 10^7 CFU/l
* Minimum daily dose via water: 9.6 x 10^9 CFU/animal/day
* **Labelling Requirements:**
* The storage conditions, heat treatment stability, and stability in drinking water must be indicated in the directions for use of the additive and premixtures.
* **Safety Measures:**
* Feed business operators must establish operational procedures and organisational measures to address potential user risks.
* If risks cannot be eliminated, users must use personal breathing and skin protective equipment.
* **Analytical Methods:**
* Enumeration: Spread-plate method on tryptone soya agar (EN 15784)
* Identification: DNA sequencing methods or Pulsed-Field Gel Electrophoresis (PFGE) (CEN/TS 17697)
**Impact Analysis**
**Ruminant (Dairy Cow) Farmers:**
* **Impact:** Can now use the Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903 preparation as a feed additive for their dairy cows and other dairy ruminants to promote milk production/reproduction.
* **Action Required:** Follow the specified conditions of use (dosage, mixing, etc.) as outlined in the Annex and directions on the label. Implement operational procedures and organizational measures to address potential user risks and where risk cannot be eliminated users must use personal breathing and skin protective equipment.
**Feed Business Operators (Producers of Additives and Premixtures):**
* **Impact:** Can produce and sell feed additives and premixtures containing Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903 for ruminants.
* **Action Required:** Include information about the storage conditions, heat treatment stability, and stability in drinking water in the directions for use of the additive and premixtures. Establish operational procedures and organisational measures to address potential risks resulting from their use.
**Users of Additive and Premixtures:**
* **Impact:** Are responsible for safe handling.
* **Action Required:** Comply with operational procedures and organisational measures to address potential risks resulting from their use, and use personal breathing and skin protective equipment.
Key Entities Referenced
Regulation (EC) No 1831/2003: Regulation of the European Parliament and of the Council on additives for use in animal nutrition, which establishes the framework for authorizing feed additives.
Bacillus paralicheniformis DSM 33902: A microorganism (bacterium) authorized as a feed additive for ruminants.
Bacillus subtilis DSM 33903: A microorganism (bacterium) authorized as a feed additive for ruminants.
European Food Safety Authority: The EU agency that provided the scientific opinion on the safety and efficacy of the feed additive.
Ruminants: The target animal species for which the feed additive is authorized, specifically for milk production and reproduction.
Official Journal EN
of the European Union L series
2025/2511 12.12.2025
COMMISSION IMPLEMENTING REGULATION(EU) 2025/2511
of 11 December 2025
concerning the authorisation of a preparation of Bacillus paralicheniformisDSM 33902 and Bacillus
subtilisDSM 33903 as a feed additive for ruminants for milk production/reproduction (holder of
authorisation: Chr. Hansen A/S)
(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
a preparation of Bacillus paralicheniformis DSM 33902 and Bacillus subtilis DSM 33903. 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 the preparation of Bacillus paralicheniformis DSM 33902 and Bacillus
subtilis DSM 33903 as a feed additive for dairy cows and other dairy ruminants, requesting that additive to be
classified in the category ‘zootechnical additives’ and in the functional group ‘gut flora stabilisers’.
(4) The European Food Safety Authority (‘the Authority’) concluded in its opinion of 9 April 2025(2) that, under the
proposed conditions of use, the preparation of Bacillus paralicheniformisDSM 33902 and Bacillus subtilisDSM 33903
is safe for the target species, consumers and the environment. The Authority also concluded that the preparation of
Bacillus paralicheniformisDSM 33902 and Bacillus subtilisDSM 33903 in its both forms is considered non-irritant to
the skin and eyes, but skin and respiratory sensitiser, and any exposure through the skin and respiratory tract are
considered a risk. The Authority further concluded that the preparation of Bacillus paralicheniformisDSM 33902 and
Bacillus subtilis DSM 33903 has the potential to be efficacious as a zootechnical additive in dairy cows and other
dairy ruminants when used in feed and water. It also concluded that the minimum use level of the preparation in
feed can be established at 3,8 × 108CFU/kg complete feed while the minimum use level in water can be established
based on the daily dose per animal (9,6 × 109 CFU per animal) and the daily water intake. The Authority did not
consider that there is a need for specific requirements of post-market monitoring. It also verified the report on the
methods 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 the preparation of Bacillus paralicheniformis DSM 33902 and
Bacillus subtilis DSM 33903 satisfies the conditions for authorisation provided for in Article 5 of Regulation (EC)
No 1831/2003. Accordingly, the use of that preparation should be authorised for ruminants for milk production/
reproduction. 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,
(1) OJ L 268, 18.10.2003, p. 29, ELI: http://data.europa.eu/eli/reg/2003/1831/oj.
(2) EFSA Journal2025; 23:e9426. https://doi.org/10.2903/j.efsa.2025.9426.
ELI: http://data.europa.eu/eli/reg_impl/2025/2511/oj 1/4EN
OJ L, 12.12.2025
HAS ADOPTED THIS REGULATION:
Article 1
Authorisation
The preparation specified in the Annex, belonging to the additive category ‘zootechnical additives’ and to the functional
group ‘gut flora stabilisers’, 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, 11 December 2025.
For the Commission
The President
Ursula VON DER LEYEN
2/4 ELI: http://data.europa.eu/eli/reg_impl/2025/2511/ojANNEX
Minimum Maximum Minimum Maximum
content content content content
Identification Name of the Composition, chemical Species or End of period
Name of the Maximum
number of the holder of formula, description, category of Other provisions of
additive age CFU/kg of complete feed
feed additive authorisation analytical method animal authorisation
with a moisture content of CFU/l of water for drinking
12 %
Category: zootechnical additives. Functional group: gut flora stabilisers.
4b1896 Chr. Bacillus Additive composition Ruminants - 3,8 × 108 - 7,4 × 107 - 1. The additive may 1 January
Hansen A/S paralichenifor Preparation of Bacillus for milk be used via water 2036
misDSM paralicheniformisDSM production/ for drinking.
33902 and 33902 and Bacillus reproduc
Bacillus subtilis subtilisDSM 33903 tion 2. In the directions
DSM 33903 containing a minimum for use of the
total of Bacillus spp. additive and
3,2 × 1010CFU/g premixtures, the
additive (1:1 ratio) storage
Solid form conditions, the
stability to heat
Characterisation of the treatment and the
active substance stability in water
Viable spores of for drinking shall
Bacillus be indicated.
paralicheniformisDSM
33902 and Bacillus 3. When it is used via
subtilisDSM 33903. water for
drinking, the
additive shall be
used ensuring a
minimum dose of:
9,6 × 109CFU/
animal/day.
ELI:
http://data.europa.eu/eli/reg_impl/2025/2511/oj
3/4
OJ
L,
12.12.2025
ENMinimum Maximum Minimum Maximum
content content content content
Identification Name of the Composition, chemical Species or End of period
Name of the Maximum
number of the holder of formula, description, category of Other provisions of
additive age CFU/kg of complete feed
feed additive authorisation analytical method animal authorisation
with a moisture content of CFU/l of water for drinking
12 %
Analytical method(1) 4. For users of the
For enumeration in additive and
the feed additive, premixtures, feed
compound feed and business
water for drinking: operators shall
Spread-plate method establish
on tryptone soya agar operational
(EN 15784) procedures and
organisational
For identification: measures to
DNA sequencing address potential
methods or Pulsed- risks resulting
Field Gel from their use.
Electrophoresis (PFGE) Where those risks
(CEN/TS 17697) cannot be
eliminated by
such procedures
and measures, the
additive and
premixtures shall
be used with
personal
breathing and skin
protective
equipment.
(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.
4/4
ELI:
http://data.europa.eu/eli/reg_impl/2025/2511/oj
EN
OJ
L,
12.12.2025