Bacterial Additive DSM 11798 in Feed: What Changes for Manufacturers and Livestock Farmers

Key data

Feed manufacturers for pigs, poultry and ornamental birds have an immediate obligation: to verify that their products containing the bacterial additive DSM 11798 comply with the new conditions established in the Implementing Regulation (EU) 2026/549. This regulation, in force since 13 March 2026, renews the authorization of this preparation of the strain of the family Eggerthellaceae and completely replaces the previous regulation.

This is not a development without consequences: Implementing Regulations (EU) No 1016/2013 and (EU) 2017/930 are repealed. Any product that continues to be based on the conditions of those regulations without adapting to the new ones may be withdrawn from the market.

What does this regulation establish?

EU Regulation 2026/549 regulates the renewal of the authorization of the preparation of the bacterial strain DSM 11798, belonging to the family Eggerthellaceae, as a zootechnical additive in feed intended for three categories of animals:

• Pigs
• Poultry
• Ornamental birds

The renewal means that the authorization conditions have been reviewed and updated. Manufacturers and distributors cannot assume that the previous conditions remain in force: they must compare their formulations, labeling, permitted dosages and conditions of use with the new requirements established in this regulation.

Economic and operational impact

The impact is not theoretical. Companies in the animal nutrition sector that use the DSM 11798 additive in their formulations must face an operational review process that may involve:

• Review of formulations: Verify that the dosages and conditions of use of the additive in each product reference comply with the new authorized parameters.
• Update of labeling: Labeling must reflect updated conditions of use. Labeling that cites the repealed regulations (1016/2013 or 2017/930) must be corrected.
• Risk of market withdrawal: Non-compliance with the new authorization conditions may result in withdrawal of affected products from the market, with the economic and reputational cost that this entails.
• Review of supplier contracts: Additive distributors must verify that the preparations they market comply with the new authorization.

The cost of adaptation will depend on the volume of affected product references and the degree of divergence between the previous and new conditions. However, the cost of inaction—product withdrawal, possible sanctions and loss of customers—is significantly higher.

Who does it affect?

• Feed manufacturers that include the bacterial additive DSM 11798 in their formulations for pigs, poultry or ornamental birds.
• Pig farmers who use feed with this additive and must verify that their suppliers comply with the new regulations.
• Poultry companies (production of poultry and ornamental birds) that depend on feed formulated with DSM 11798.
• Distributors of additives for animal feed that market the DSM 11798 preparation or products containing it.
• Quality and regulatory compliance managers in animal nutrition sector companies.

Practical example

A feed manufacturer for broilers (meat chickens) that includes the DSM 11798 additive in three of its product references has, since 13 March 2026, the obligation to verify that those three references comply with the conditions of EU Regulation 2026/549 and not just those of the repealed Regulation 2017/930.

If during the review process it detects that the labeling of those references still cites Regulation 2017/930 as the basis for authorization, it must update the labeling. If, in addition, the dosages or conditions of use have changed compared to the previous authorization, it must adjust the formulation before continuing to market those products.

Failure to act means that those products could be considered non-compliant with current regulations and be subject to withdrawal from the market by the competent authorities.

What should companies do now?

1. Identify which products contain the DSM 11798 additive: Make an inventory of all feed references that include this preparation of the bacterial strain of the family Eggerthellaceae.
2. Review the new authorization conditions: Compare the permitted dosages and conditions of use established in EU Regulation 2026/549 with those that applied under Regulations 1016/2013 and 2017/930, now repealed.
3. Update labeling: Correct any reference to repealed regulations in the labeling of affected products.
4. Verify formulations: Ensure that current formulations comply with the new authorization conditions before continuing to market the products.
5. Communicate to the distribution chain: Inform distributors and livestock customers about the changes and the compliance status of the products.
6. Document the adaptation process: Keep records of the reviews carried out to be able to demonstrate compliance in the event of an inspection.

Official source

Commission Implementing Regulation (EU) 2026/549 of 13 March 2026, published in the Official Journal of the European Union on 16 March 2026.