Safety and efficacy of a feed additive consisting of Saccharomyces cerevisiae CNCM I-1079 for calves, all other ruminant species and camelids for rearing and for fattening (Danstart Ferment AG)

Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of Saccharomyces cerevisiae CNCM I‐1079 when used as a zootechnical additive (gut flora stabilisers and physiological condition stabilisers) for calves, all other ruminant species and for camelids for rearing and for fattening. The product, manufactured in two forms, as a powder and an encapsulated form, is intended for use in complete feed at a minimum inclusion level of 1 × 10⁹ CFU/kg complete feed. S. cerevisiae is considered by EFSA to be suitable for the qualified presumption of safety approach to safety assessment. Since the identity of the strain has been clearly established and the additive is composed mainly by dried cells of the active agent, the use of the additive in animal nutrition is considered safe for the target species, the consumer and the environment. The additive is not a skin or eye irritant, or a skin sensitiser, but should be considered a respiratory sensitiser. However, exposure by inhalation to the encapsulated form is unlikely. The Panel was not in the position to conclude on the efficacy of the additive for the target species.

Safety and efficacy of Levucell®SB (Saccharomyces cerevisiae CNCM I-1079) as a feed additive for all pigs

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of Levucell^®SB when used in feed for suckling piglets, pigs for fattening and minor porcine species. Levucell^®SB is the trade name for a feed additive based on viable cells of a strain Saccharomyces cerevisiae currently authorised as a zootechnical additive for weaned piglets, sows, chickens for fattening and minor poultry species for fattening. The applicant is now seeking authorisation as a zootechnical additive for use with all pigs. In the context of a previous opinion, the identity of the strain was confirmed, and according to the Qualified Presumption of Safety (QPS) approach to safety assessment, it was presumed safe for the target species, consumers of products from animals fed the additive and the environment. Since no concerns are expected from other components of the additive, Levucell^® SB is also considered safe for the target species, including all pigs, consumers and the environment. Levucell^® is not a skin or eye irritant or a skin sensitiser. Inhalation exposure is unlikely. Encapsulation used in the existing coated forms is not expected to introduce hazards for users. In previous opinions, Levucell^®SB was found to have the potential to be efficacious in sows and weaned piglets at the dose of 1 × 10⁹ colony forming units (CFU)/kg complete feedingstuffs. Since the dose proposed for use with all pigs is the same as that demonstrated to be effective in weaned piglets and sows, and it can be reasonably assumed that the mode of action is the same, the conclusion on efficacy for weaned piglets and sows can be extrapolated to all pigs. Therefore, the FEEDAP Panel concludes that Levucell^® SB has the potential to be efficacious in all pigs at 1 × 10⁹ CFU/kg feedingstuffs.