Assessment of the efficacy of two feed additives consisting of Lactiplantibacillus plantarum (formerly Lactobacillus plantarum) strains ATCC 55058 and ATCC 55942 for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of two technological additives to improve ensiling of forages consisting of Lactiplantibacillus plantarum (formerly Lactobacillus plantarum) strains ATCC 55058 and ATCC 55942, respectively, for all animal species. Both additives are intended for use with all forages and for all animal species at a proposed minimum concentration of 5 × 10⁶ colony forming units (CFU)/kg forage. In two previous opinions, the FEEDAP Panel could not conclude on their efficacy due to the absence of any significant evidence of nutrient preservation. Based on three new efficacy studies provided by the applicant as supplementary information, the FEEDAP Panel concluded that the addition of L. plantarum strains ATCC 55058 or ATCC 55942, have the potential to improve the ensiling process by reducing protein degradation in all type of forages as indicated by the reduction of ammonia production.