RESUMEN
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 efficacy of ROVABIO® ADVANCE (liquid and solid) which contains endo-1,4-beta-xylanase and endo-1,3(4)-beta-glucanase produced with Talaromyces versatilis IMI 378536 and DSM 26702 as a zootechnical feed additive for weaned piglets at the recommended use level of 1800 U xylanase and 1250 U glucanase per kg feed. In a previous assessment, three long-term trials in weaned piglets were submitted. Two of them were considered to support the efficacy of the additive while a third trial was not further considered due to the large number of veterinary treatments applied. A new trial was provided to support the efficacy of the additive, but it did not show a significant improvement of the performance parameters at the minimum recommended use level. Due to the lack of sufficient data, the FEEDAP Panel is not in the position to conclude on the efficacy of the additive for the target species.
RESUMEN
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 assessment of the application for renewal of authorisation of AveMix® XG 10 (endo-1,4-beta-xylanase and endo-1,3(4)-beta-glucanase) for chickens for fattening. The applicant has provided evidence that the additive currently in the market complies with the existing conditions of authorisation. There is no new evidence that would lead the FEEDAP Panel to reconsider its previous conclusions. Thus, the Panel concludes that the additive remains safe for the target species, consumer and the environment under the authorised conditions of use. Regarding user safety, the additive is not considered to be a dermal or eye irritant but it is a dermal and respiratory sensitiser. There is no need for assessing the efficacy of the additive in the context of the renewal of the authorisation.
RESUMEN
ENZY CARBOPLUS ® is an additive available in liquid and solid forms that contains endo-1,4-beta-xylanase and endo-1,3(4)-beta-glucanase which are produced by two genetically modified strains of Komagataella pastoris. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the production strains are safe and the genetic modifications raise no safety concerns. The Panel also concluded that the additive is safe for the target species at the recommended dosages and that its use as a feed additive raises no concern for consumers. The additive in either form is not a skin or eye irritant nor a dermal sensitiser; however, it is considered as a potential respiratory sensitiser. The production strains and their recombinant DNA were not detectable in the additive; moreover, the active substances of the additive will be degraded/inactivated during passage through the digestive tract of animals or in the environment, consequently, the Panel concluded that the additive poses no concerns to the environment. The Panel concluded that the additive has a potential to be efficacious as a zootechnical additive in chickens for fattening at 4,000 LXU and 375 LGU per kg feed, in turkeys for fattening at 1,400 LXU and 120 LGU per kg feed, and in weaned piglets at 700 LXU and 60 LGU per kg feed. The Panel extended these conclusions to chickens reared for laying and turkeys reared for breeding at the corresponding doses. Since the mode of action of xylanase and glucanase can be reasonably assumed to be the same within avian or within porcine species, the Panel extrapolated the conclusions on the efficacy to all avian species up to the point of lay and to all porcine species. Owing to the lack of data, no conclusions could be drawn on the efficacy of the additive in laying hens.
