Scientific Opinion on the safety and efficacy of AveMix® XG 10 (endo-1,4-beta-xylanase and endo-1,3(4)-beta-glucanase) as a feed additive for turkeys for fattening

The additive AveMix® XG 10 is an enzyme preparation of endo-1,4-beta-xylanase (xylanase) and endo-1,3(4)-beta-glucanase (glucanase), produced by two strains of Trichoderma reesei. This product is currently authorised for use in chickens for fattening, laying hens, minor poultry species and weaned piglets as a zootechnical additive, under the functional group of digestibility enhancers. The applicant is now seeking an extension of the authorisation to turkeys for fattening at a recommended dose of 4 000 XU (xylanase units) and 900 BGU (glucanase units) per kg complete feed. The results obtained in a tolerance study in turkeys for fattening showed that the birds tolerated well a 100-fold overdose of the recommended dose. Therefore, the additive is safe for turkeys for fattening when used at the recommended dose. Three efficacy studies carried out in turkeys for fattening showed that the additive has the potential to be efficacious at the dose of 4 000 XU and 900 BGU/kg complete feed.