Selenised yeast Saccharomyces cerevisiae CNCM I-3060, inactivated Preparation of organic selenium: Content of selenium: 2 000 to 2 400 mg Se/kg (3b810)

What it is. Inactivated selenised yeast obtained from Saccharomyces cerevisiae strain CNCM I-3060, grown to incorporate organic selenium. The additive contains 2,000 to 2,400 mg Se/kg, with organic selenium representing 97 to 99% of total selenium and selenomethionine above 63% of total selenium.

What it is for. This additive supplies organic selenium, used as a nutritional additive (trace element compound) in feed for all animal species. Organic selenium sources of this type are generally used to cover selenium requirements as an alternative to inorganic forms, notably where improved bioavailability or incorporation into tissue proteins is sought. Inclusion is calculated to reach the total selenium content allowed in complete feed.

Points to watch. Total selenium in complete feed (12% moisture) must not exceed 0.50 mg/kg, all selenium sources combined. Selenomethionine content and organic selenium share can vary within the stated ranges from batch to batch, which should be checked against the specification when formulating.