2022年10月26日，據歐盟食品安全局（EFSA）消息，應歐盟委員會要求，歐盟動物飼料添加劑和產品（FEEDAP）研究小組就糞腸球菌（Enterococcus faecium）53519和糞腸球菌55593作為所有動物飼料添加劑的功效有效性發表科學意見。
經過評估，專家小組無法對添加劑在建議使用條件下的功效做出結論。部分原文報道如下：
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 Enterococcus faecium strains ATCC 53519 and ATCC 55593, respectively, for all animal species. The additives are intended for use with all forages and for all animal species at a proposed minimum concentration of 1 × 107 colony forming units (CFU) of E. faecium ATCC 53519/kg forage or 5 × 106 CFU of E. faecium ATCC 55593/kg forage, respectively. In a previous opinion, the FEEDAP Panel could not conclude on their efficacy owing to the lack of sufficient evidence for an improvement on the nutrient preservation during the ensiling process. The new data submitted by the applicant as supplementary information provided not enough weight of evidence on the effects of the additives on the ensiling of easy, moderately difficult and difficult to ensile material, and therefore, the FEEDAP Panel is not in the position to conclude on the efficacy of the additive under the proposed conditions of use.
經過評估，專家小組無法對添加劑在建議使用條件下的功效做出結論。部分原文報道如下：
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 Enterococcus faecium strains ATCC 53519 and ATCC 55593, respectively, for all animal species. The additives are intended for use with all forages and for all animal species at a proposed minimum concentration of 1 × 107 colony forming units (CFU) of E. faecium ATCC 53519/kg forage or 5 × 106 CFU of E. faecium ATCC 55593/kg forage, respectively. In a previous opinion, the FEEDAP Panel could not conclude on their efficacy owing to the lack of sufficient evidence for an improvement on the nutrient preservation during the ensiling process. The new data submitted by the applicant as supplementary information provided not enough weight of evidence on the effects of the additives on the ensiling of easy, moderately difficult and difficult to ensile material, and therefore, the FEEDAP Panel is not in the position to conclude on the efficacy of the additive under the proposed conditions of use.
