Why check selenomethionine levels in selenium yeast?

QA departments of Trouw Nutrition International and Selko Feed Additives performed a laboratory analysis of selenised yeast product samples sourced in the EU and USA. Results show large differences between product samples on selenomethionine (SeMet) levels, the most effective and active compound in selenised yeast. Selenium is one of the most examined and fascinating trace elements in life. Nowadays, selenium can be included in animal feed in two forms; as inorganic selenite or as organic sele