Commission Implementing Regulation (EU) 2023/1172 of 15 June 2023 concerning the authorisation of a preparation of lasalocid A sodium (Avatec 150 G) as a feed additive for chickens for fattening, the denial of authorisation of a preparation of lasalocid A sodium (Avatec 150 G) as a feed additive for chickens reared for laying, the withdrawal from the market of a preparation of lasalocid A sodium (Avatec 15 % cc) as a feed additive for chickens for fattening and chickens reared for laying and repealing Regulation (EC) No 1455/2004 and Implementing Regulation (EU) 2021/932 (holder of authorisation: Zoetis Belgium S.A.) (Text with EEA relevance)