經過評估，專家小組認為菌株作為青貯飼料添加劑的使用對牲畜品種、消費者和環境是安全的。在1×10 ⁸ CFU/千克新鮮植物材料的建議使用量下，添加劑显示出改善干物質含量在30%至70%範圍內的青貯飼料的有氧穩定性的潛力。部分原文報道如下：

 

　　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 an additive co nsisting of Propio nibacterium freudenreichii DSM 33189 and Lentilactobacillus buchneri (formerly Lactobacillus buchneri) DSM 12856 as a technological additive for all animal species. The additive is intended to improve the production of silage at a proposed application rate of 1×10 ⁸ co lony-forming units (CFU)/kg fresh material. The bacterial species P. freudenreichii and L. buchneri are co nsidered by EFSA to be suitable for the qualified presumption of safety (QPS) approach to assessment. As the identity of the strains has been clearly established and no acquired antimicrobial resistance determinants of co ncern were detected, the use of the strains as a silage additive is co nsidered safe for livestock species, for co nsumers and for the environment. The additive is not irritant for eyes or skin but should be co nsidered a respiratory sensitiser. In the absence of data, the FEEDAP Panel could not co nclude on the potential of the additive to be a skin sensitiser. The additive at the proposed application rate of 1×10 ⁸ CFU/kg fresh plant material showed the potential to improve the aerobic stability silage with dry matter co ntent ranging from 30% to 70%.