Description
What it is. This additive is a liquid preparation of four lytic bacteriophages (PCM F/00069, F/00070, F/00071, F/00097), mixed in a 1:1:1:1 ratio, containing at least 5 × 10^7 PFU/ml. The phages specifically infect Salmonella enterica ser. Gallinarum B/00111.
What it is for. It belongs to functional group 4d, other zootechnical additives, and is authorised for poultry. It is administered only via drinking water, at a minimum dose of 2 × 10^6 PFU/bird/day, to target Salmonella colonisation in birds. An associated EFSA study (Bafasal®) assessed its use to reduce Salmonella contamination of carcases and environmental load, and to support zootechnical performance, without this constituting an official usage recommendation.
Points to watch. Use is restricted to drinking water; storage conditions and stability in water must be specified on the instructions for use, and the label must state that the additive is not a substitute for good hygiene practice. The marketing authorisation holder must run a post-market monitoring programme covering the selection of phage-resistant Salmonella variants and potential horizontal transfer of antimicrobial resistance genes; personal protective equipment may be required for operators.
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