# Assessment of the feed additive consisting of Bacillus velezensis ATCC PTA‐6737 (PB6) for the renewal of its authorisation for laying hens and minor poultry species for laying (4b1823) and its extension of use to other laying/breeding birds (Kemin Europa n.v.)

**Authors:** Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Ilen Röhe, Katerina Theodoridou, Montserrat Anguita, Jaume Galobart, Matteo L. Innocenti, Jordi Ortuño, Fabiola Pizzo, Rosella Brozzi

PMC · DOI: 10.2903/j.efsa.2025.9457 · EFSA Journal · 2025-05-28

## TL;DR

This paper evaluates the safety and efficacy of a feed additive containing Bacillus velezensis for laying hens and other egg-producing birds.

## Contribution

The study confirms the safety and efficacy of a higher concentration of the additive for poultry and proposes an extension of its use.

## Key findings

- The additive is safe for laying hens, egg-producing birds, consumers, and the environment.
- The additive is not irritant to skin and eyes but is a potential skin and respiratory sensitiser.
- The additive is efficacious at a minimum inclusion level of 1 × 10⁸ CFU/kg complete feed.

## Abstract

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a feed additive consisting of Bacillus velezensis ATCC PTA‐6737 (PB6) as a zootechnical feed additive. With the current application, the applicant is seeking the renewal of the authorisation for laying hens and minor poultry species for laying. In addition, the applicant is seeking the modification of the terms of the existing authorisation to obtain the authorisation of a more concentrated form of the additive (from 1 × 1010 to 8 × 1010 colony forming units (CFU)) and the authorisation of the additive for other birds kept for egg production or breeding. The evidence provided showed that the additive complies with the new specifications and the current terms of the authorisation. The FEEDAP Panel concludes that the additive is safe for laying hens, birds kept for egg production or breeding, the consumer and the environment. Regarding safety for the user, the additive is not irritant to the skin and eyes but should be considered a skin and respiratory sensitiser and inhalation and dermal exposure is considered a risk. The additive has the potential to be efficacious in other birds kept for egg production or breeding at the minimum inclusion level of 1 × 108 CFU/kg complete feed.

## Linked entities

- **Species:** Bacillus velezensis (taxon 492670)

## Full-text entities

- **Chemicals:** ATCC PTA-6737 (-)
- **Species:** Gallus gallus (bantam, species) [taxon 9031]

## Full text

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## References

21 references — full list in the complete paper: https://tomesphere.com/paper/PMC12117905/full.md

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Source: https://tomesphere.com/paper/PMC12117905