TY - JOUR

T1 - Efficacy of the feed additives consisting of Enterococcus faecium ATCC 53519 and E. faecium ATCC 55593 for all animal species (FEFANA asbl)

AU - Bampidis, Vasileios

AU - Azimonti, Giovanna

AU - Bastos, Maria de Lourdes

AU - Christensen, Henrik

AU - Durjava, Mojca

AU - Dusemund, Birgit

AU - Kouba, Maryline

AU - López-Alonso, Marta

AU - López Puente, Secundino

AU - Marcon, Francesca

AU - Mayo, Baltasar

AU - Pechová, Alena

AU - Petkova, Mariana

AU - Sanz, Yolanda

AU - Sanz, Yolanda

AU - Villa, Roberto Edoardo

AU - Woutersen, Ruud

AU - Dierick, Noël

AU - Anguita, Montserrat

AU - Brozzi, Rosella

AU - Fruk, Stefani

AU - Innocenti, Matteo

AU - Revez, Joana

AU - Ortuño, Jordi

AU - EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)

N1 - Publisher Copyright: © 2023 European Food Safety Authority. EFSA Journal published by Wiley-VCH GmbH on behalf of European Food Safety Authority.

PY - 2023

Y1 - 2023

N2 - Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of two technological additives consisting of Enterococcus faecium strains ATCC 53519 and ATCC 55593, respectively. The additives are intended for use with all types of fresh materials 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. In a previous opinion, the FEEDAP Panel could not conclude on their efficacy since the dry matter content of the ensiled materials at the end of the experiments was not corrected for volatiles, which led to an unreliable estimation of the dry matter loss, and the lack of positive effects on any of the other parameters. The supplementary information submitted by the applicant included updated data on the pH values and the dry matter loss corrected for volatiles. However, the estimation of the dry matter loss corrected for volatiles was wrongly calculated and thus, was not considered for the assessment of the efficacy of the additive. Considering the lack of effect on any other fermentation parameter, the Panel could not conclude on the efficacy of the additive to improve the production of silage under the proposed conditions of use.

AB - Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of two technological additives consisting of Enterococcus faecium strains ATCC 53519 and ATCC 55593, respectively. The additives are intended for use with all types of fresh materials 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. In a previous opinion, the FEEDAP Panel could not conclude on their efficacy since the dry matter content of the ensiled materials at the end of the experiments was not corrected for volatiles, which led to an unreliable estimation of the dry matter loss, and the lack of positive effects on any of the other parameters. The supplementary information submitted by the applicant included updated data on the pH values and the dry matter loss corrected for volatiles. However, the estimation of the dry matter loss corrected for volatiles was wrongly calculated and thus, was not considered for the assessment of the efficacy of the additive. Considering the lack of effect on any other fermentation parameter, the Panel could not conclude on the efficacy of the additive to improve the production of silage under the proposed conditions of use.

KW - efficacy

KW - Enterococcus faecium ATCC 53519

KW - Enterococcus faecium ATCC 55593

KW - silage additives

KW - technological additives

U2 - 10.2903/j.efsa.2023.8166

DO - 10.2903/j.efsa.2023.8166

M3 - Journal article

C2 - 37522097

AN - SCOPUS:85165958950

VL - 21

JO - E F S A Journal

JF - E F S A Journal

SN - 1831-4732

IS - 7

M1 - e08166

ER -