# Assessment of the feed additive consisting of Saccharomyces cerevisiae CBS 493.94 (Yea‐Sacc®) for dairy cows, minor dairy ruminant species, cattle for fattening and minor ruminant species for fattening for the renewal of its authorisation (ALL‐TECHNOLOGY (IRELAND) LIMITED [Alltech Ireland])

## TL;DR

This paper assesses the safety of a yeast-based feed additive for dairy cows and other ruminants, confirming it is safe for animals and consumers but poses some risks to users.

## Contribution

The study confirms the ongoing safety of Saccharomyces cerevisiae CBS 493.94 for target species and consumers, while identifying specific user safety concerns.

## Key findings

- The additive is safe for target species, consumers, and the environment.
- Yea-Sacc® TS is non-irritant to skin and eyes, while Yea-Sacc® C is non-irritant to skin but irritant to eyes.
- Both formulations are skin and respiratory sensitizers, posing risks with exposure.

## Abstract

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the assessment of the application for renewal of authorisation of a preparation of dried cells of Saccharomyces cerevisiae CBS 493.94 (Yea‐Sacc®) as a zootechnical additive for dairy cows, minor dairy ruminant species, cattle for fattening and minor ruminant species for fattening. The feed additive is marketed in two solid forms (Yea‐Sacc® C and Yea‐Sacc® TS) differing by the granulometry. The applicant provided evidence that the additive currently in the market complies with the existing terms of the authorisation. The Panel concluded that the additive remains safe for the target species, consumers and the environment. Regarding the safety for the user, Yea‐Sacc® TS is non‐irritant to the skin or eyes while Yea‐Sacc® C is not irritant to the skin but irritant to the eyes. The additive in both formulations should be considered a skin and respiratory sensitiser and any exposure through skin and respiratory tract is considered a risk. There is no need to assess the efficacy of the additive in the context of the renewal of the authorisation.