Safety and efficacy of Zinc-L-Selenomethionine as feed additive for all animal species

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

The additive, ‘Zinc-L-selenomethionine’ (Zn-L-SeMet) is intended to be used as a source of selenium for all animal species. The applicant intends to market the active compound blended with inert carriers (Availa®Se). Zn-L-SeMet is a safe source of selenium for chickens for fattening; the conclusion is extended to all animal species. Selenium from Zn-L-SeMet does not elicit any adverse effects not expected for a selenium compound. The use of Zn-L-SeMet in animal nutrition is expected to result in a similar increase in selenium deposition in animal tissues/products as that resulting from other sources of SeMet. The use of the additive up to the maximum selenium supplementation level established for other sources of organic selenium (0.2 mg/kg complete feed) and complying with the maximum authorised total selenium content is safe for consumers. The additive is hazardous upon inhalation; owing to the high dusting potential, persons handling Availa®Se are at risk by inhalation. Availa®Se is not an irritant to the skin. In the absence of data, no conclusion on the eye irritation and skin sensitisation can be drawn. The use of Zn-L-SeMet in feed does not pose an additional risk to the environment, compared with other sources of selenium for which it will substitute, as long as the maximum authorised content in complete feed is not exceeded. Zn-L-SeMet is an effective source of selenium in chickens for fattening and laying hens; this conclusion is extended to all animal species. The maximum contribution of zinc in total feed deriving from the use of the additive (< 0.2 mg Zn/kg feed) is considered low and does not need any safety assessment except for users.

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(FEEDAP), EFSA: Safety and efficacy of Zinc-L-Selenomethionine as feed additive for all animal species. 2018.

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