Safety and efficacy of Monteban® G100 (narasin) for ducks for fattening

EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)

Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of Monteban® G100 for ducks. Monteban® G100, containing narasin, is intended for the prevention of coccidiosis in ducks for fattening at a dose range of 60–70 mg/kg of complete feed. Narasin from Monteban® G100 is safe for ducks for fattening at a level of 70 mg/kg complete feed with a margin of safety of about 4. The FEEDAP Panel assumes that the residues in duck tissues would be of the same magnitude as those measured in the physiologically similar major species, chickens for fattening. The use of Monteban® G100 at a maximum concentration of 70 mg/kg complete feed for ducks for fattening is safe for the consumer without applying a withdrawal period, provided the maximum residue limit (MRL) of 50 lg narasin/kg for all wet tissues would not be exceeded. Monteban® G100 is irritant to the eyes but not to the skin. It has the potential to induce skin sensitisation. The acute systemic toxicity following dermal application is low. Inhalation exposure would pose a risk to persons handling the additive. Narasin, when used as feed additive for ducks for fattening at 70 mg/kg feed, is not expected to pose a risk to the environment. The risk for sediment compartment cannot be assessed. Narasin is not considered to have a bioaccumulation potential. Insufficient data were provided to allow a conclusion on the efficacy of Monteban® G100 in ducks.

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(FEEDAP), EFSA: Safety and efficacy of Monteban® G100 (narasin) for ducks for fattening. 2018.

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