Safety and efficacy of Robenz® 66G (robenidine hydrochloride) for chickens for fattening and turkeys for fattening

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

Following a request from 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 Robenz® 66G (robenidine hydrochloride (HCl)) when used as a feed additive for chickens for fattening and turkeys for fattening. The coccidiostat Robenz® 66G is considered safe for chickens for fattening at the highest proposed level of 36 mg robenidine HCl/kg complete feed with a margin of safety of approximately 2.5. This conclusion is extrapolated to turkeys for fattening. Robenidine HCl is active against Gram-positive but not against Gram-negative bacteria. It is not expected that the use of robenidine HCl as a feed additive would induce resistance or cross-resistance to antimicrobials used in human and animal therapy. The use of robenidine HCl from Robenz® 66G at the highest proposed level of 36 mg/kg complete feed in chickens and turkeys for fattening is considered safe for the consumer. The existing maximum residues limits for both avian species are confirmed. Robenidine HCl is not a skin or eye irritant and not a skin sensitiser. The risk via inhalation is considered negligible. The use of robenidine HCl from Robenz® in feed for chickens for fattening and turkeys for fattening up to 36 mg/kg complete feed does not pose a risk to either the terrestrial or the aquatic compartment. A risk for bioaccumulation cannot be excluded. The risk for secondary poisoning is not likely to occur. The FEEDAP Panel concludes that 36 mg robenidine HCl/kg complete feed from Robenz® 66G has the potential to effectively control coccidiosis of chickens for fattening under field conditions but cannot conclude on the efficacy of robenidine HCl in turkeys for fattening. The existing 5-day withdrawal period to avoid off-flavours in edible tissues should be maintained.

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(FEEDAP), EFSA: Safety and efficacy of Robenz® 66G (robenidine hydrochloride) for chickens for fattening and turkeys for fattening. 2019.

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