1 TXU is the amount of enzyme which liberates 5 micromoles of reducing sugars (xylose equivalents) from wheat arabinoxylan per minute at pH 3,5 and 55 °C.    ,
    1 TGU is the amount of enzyme which liberates 1 micromoles of reducing sugars (glucose equivalents) from barley ß-glucan per minute at pH 3,5 and 40 °C.    ,
    Details of the analytical methods are available at the following address of the Reference Laboratory: http://irmm.jrc.ec.europa.eu/EURLs/EURL_feed_additives/Pages/index.aspx    ,



4a7,BASF SE,  Endo-1,4-beta-xylanase    EC 3.2.1.8    Endo-1,4-beta-glucanase    EC 3.2.1.4  ,     Additive composition     Preparation of endo-1,4-beta-xylanase produced by Aspergillus niger (CBS 109.713) and endo-1,4-beta-glucanase produced by Aspergillus niger (DSM 18404) having a minimum activity of:      Solid form    5 600 TXU and 2 500 TGU /g      Liquid form    5 600 TXU and 2 500 TGU/g         Characterisation of the active substance     endo-1,4-beta-xylanase produced by Aspergillus niger (CBS 109.713)    and endo-1,4-beta-glucanase produced by Aspergillus niger (DSM 18404)       Analytical method        For quantification of endo-1,4-beta-xylanase activity:    viscosimetric method based on decrease of viscosity produced by action of endo-1,4-beta-xylanase on the xylan containing substrate (wheat arabinoxylan) at pH 3,5 and 55 °C.      For quantification of endo-1,4-beta-glucanase activity:    viscosimetric method based on decrease of viscosity produced by action of endo-1,4-beta-glucanase on the glucan containing substrate (barley betaglucan) at pH 3,5 and 40 °C.      ,Minor poultry species for fattening (other than ducks for fattening) and ornamental birds,—,  280 TXU    125 TGU  ,—,  1.   In the directions for use of the additive and premixture, indicate the storage temperature, storage life, and stability to pelleting.     2.  Recommended doses per kilogram of complete feedingstuffs:      minor poultry species for fattening (other than ducks) and ornamental birds: 280-840 TXU/125-375 TGU,      chickens reared for laying, turkeys for breeding purposes, turkeys reared for breeding and all minor avian species for laying: 560-840 TXU/250-375 TGU.        3.   For safety: breathing protection, glasses and gloves shall be used during handling.   ,11.11.2021,
Chickens reared for laying, turkeys for breeding purposes, turkeys reared for breeding and all minor avian species for laying,  560 TXU    250 TGU  ,