Commission Implementing Regulation (EU) 2021/1426

Identification number of the additive	Name of the holder of authorisation	Additive	Composition, chemical formula, description, analytical method	Species or category of animal	Maximum age	Minimum content	Other provisions	End of period of authorisation
Units of activity/kg of complete feed with a moisture content of 12 %
Category of zootechnical additivesFunctional group: digestibility enhancers
4a13	Novozymes A/S	Serine protease (EC 3.4.21.-)	Additive composition:Solid and liquid preparation of serine protease (EC 3.4.21.-) produced by Bacillus licheniformis DSM 19670 having a minimum activity of 75000 PROT^note/g	Chickens for fattening	-	15000 PROT	1. In the directions for use of the additive and premixtures, the storage conditions and stability to heat treatment shall be indicated.2. For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address potential risks by inhalation, dermal contact or eyes contact. Where those risks cannot be eliminated or reduced to a minimum by such procedures and measures, the additive and premixtures shall be used with personal protective equipment, including eyes, skin and breathing protection.	21 September 2031
Characterisation of the active substance:Serine protease (EC 3.4.21.-) produced by Bacillus licheniformis DSM 19670
Analytical method^noteFor the quantification of the serine protease activity in the feed additive, premixtures, compound feed and feed materials:colourimetric method based on the enzymatic reaction of serine protease on the Suc-Ala-Ala-Pro-Phe-pNA substrate.