Commission Implementing Regulation (EU) 2023/2594 of 21 November 2023 concerning the denial of the renewal of the authorisation of a preparation of robenidine hydrochloride (Cycostat 66G) as a feed additive for rabbits for breeding and rabbits for fattening (holder of authorisation: Zoetis Belgium S.A.) and repealing Implementing Regulation (EU) No 532/2011