Efficacy of a feed additive consisting of Bacillus subtilis strains CNCM I-4606, CNCM I-5043 and CNCM I-4607 and Lactococcus lactis CNCM I-4609 for all animal species (MiXscience)

Abstract

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of the preparation consisting of viable cells of Bacillus subtilis CNCM I-4606, B. subtilis CNCM I-5043, B. subtilis CNCM I-4607 and Lactococcus lactis CNCM I-4609 when used as a technological additive (hygiene condition enhancer) for all animal species. In a previous opinion, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the additive is safe for the target species, consumers and the environment. The Panel also considered the additive to be non-irritant to skin and eyes, nor a dermal sensitiser, but a respiratory sensitiser. Moreover, the data provided were not sufficient to conclude on the efficacy of the additive to significantly reduce the growth of Salmonella Typhimurium or Escherichia coli in feed. In the current assessment, the applicant provided supplementary information to address these flaws and limited the claimed effect to 'prevent (re)contamination by Salmonella Typhimurium'. Based on the new studies, the Panel concluded that the additive at a minimum proposed inclusion level of 1 × 10⁹ colony forming units (CFU) B. subtilis and 1 × 10⁹ CFU L. lactis per litre showed potential to reduce Salmonella Typhimurium growth in feeds with high moisture content (60-90% moisture).

Keywords: Bacillus subtilis CNCM I‐4606; Bacillus subtilis CNCM I‐4607; Bacillus subtilis CNCM I‐5043; Lactococcus lactis CNCM I‐4609; efficacy; hygiene condition enhancer; technological additive.