Commission Implementing Regulation (EU) 2017/420 of 9 March 2017 concerning the authorisation of a preparation of thyme oil, synthetic star anise oil and quillaja bark powder as feed additive for chickens for fattening, chickens reared for laying, minor avian species for fattening and reared for laying (holder of the authorisation Delacon Biotechnik GmbH) (Text with EEA relevance. )
Data as of 2026-07-04 · Compiled from an official source version. Later amendments or repeals may not be reflected; the official text prevails. · Read the official text ↗
The preparation specified in the Annex, belonging to the additive category ‘zootechnical additives’ and to the functional group ‘other zootechnical additives’, is authorised as an additive in animal nutrition, subject to the conditions laid down in that Annex.
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union .
ANNEX 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 Maximum content Other provisions End of period of authorisation mg of the additive/kg of complete feedingstuff with a moisture content of 12 % Category of zootechnical additives. Functional group: other zootechnical additives (improvement of performance parameters) 4d15 Delacon Biotechnik GmbH Thyme oil, synthetic star anise oil and quillaja bark powder Additive composition Preparation of essential microencapsulated oils of thyme ( Thymus vulgaris L.) ( 1 ) and synthetic star anise ( 2 ) : ≥ 74 mg/g, Quillaja bark powder ( Quillaja saponaria ) ≥ 200 mg/g Saponins ≤ 23 mg/g Solid form Characterisation of the active substances Thyme oil: thymol 2-4 mg/g Star anise oil (produced by chemical synthesis): ( trans and cis )-anethole 40-50 mg/g Quillaja bark powder ( Quillaja saponaria ) ≥ 200 mg/g Analytical methods ( 3 ) Quantification of thymol in the feed additive, in premixtures and in feedingstuffs: gas chromatography-mass spectrometry (GC/MS) Chickens for fattening Chickens reared for laying Minor avian species for fattening and reared for laying — 150 150 1. In the directions for use of the additive and premixture, indicate the storage temperature, storage life, and stability to pelleting. 2. For users of the additive and premixtures, feed business operators shall establish operational procedures and organisational measures to address potential risks resulting from its use. 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 breathing protection. 30 March 2027 ( 1 ) As defined by the European Pharmacopoiea of the Council of Europe (PhEur, 2005). ( 2 ) A mixture of pure compounds mimicking the profile of natural essential star anise oil (without estragole). ( 3 ) details of the analytical methods are available at the following address of the reference laboratory: https://ec.europa.eu/jrc/en/eurl/feed-additives/evaluation-reports
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