Availa® SE 2000 EU is an organic source of selenium supplied in the form of Zn-L-selenomethionine. Selenium is a chemical element with the symbol Se. Selenium is an essential nutrient for animals, however, in large doses it can be toxic. In the animal selenium protects against oxidative damage and infection. It is furthermore a constituent of several selenoproteins that play critical roles in reproduction, thyroid hormone metabolism and DNA synthesis.  

The product is authorised for use in the EU for all species

Main claim
Better utilization of selenium compared with inorganic sources. 

Technical specifications for Availa® Se 2000 EU

EU category Nutritional additive
Functional group of additives Compound of trace element 
Composition Calcium carbonate: 97.0%; silicon dioxide: 1.62%; vegetable oil: 1.02%; Zn-L-SeMet: 0.36%;
Composition of Zn-L-SeMet: L-selenomethionine: >62%; selenium: >24.5%; zinc: >19%; chloride: >20%
Active substance  Zinc-L-selenomethionine
EU code 3b818 OK
EU approval All species.  The maximum total content of selenium must not exceed 0.50 mg/kg of complete feed
End of period of EU authorisation 3 February 2029 OK 
Safety and handling It is recommended to handle the product in ventilated areas. If the airborne concentration of the product is high it is recommended to wear breathing protection. It is also recommended to wear safety glasses and glove during handling.
Specific conditions for use Use only through a premixture
Shelf-life The proposed shelf-life is 24 months.
Homogeneity Homogeneity of the additive when supplemented to premixes, mash feed and pelleted feed was analysed. The CV in premix was 7.4 %, in mash feed 3.0 % and in pelleted feed 3.3 %. 
Characterisation of product Light to grey tan colour with no odour. The product is very slightly dispersible in water. Bulk density ranged from 1.39 and 1.41 g/cm3. The particle size distribution was investigated using laser diffraction. The proportion of particles below 10 µm was in the range of 1.1 - 4.1 %, 3.2 - 12.4 % <50 µm and 13.1 - 27.2 % < 100 µm. The dusting potential was measured to 6.1 - 11.0 g/m3.
Producer Zinpro

List of references

EFSA (2018). Safety and efficacy of Zinc-L-Selenomethionine as feed additive for all animal species. EFSA Journal 2018;16(3):5197  

EU (2019). Commission implementing Regulation (EU) 2019/49 of 4 January 2019 concerning the authorisation of sodium selenite, coated granulated sodium selenite and zinc-L-selenomethionine as feed additives for all animal species. Official Journal of the European Union, L10/2-7