Selenium Inclusion just affecting the VTM - it's difficult to measure, we stayed with it though - when you add that we leave part of the selenium in organic form, vs inorganic, so the hope is that the selenium comes through the milk and provides better vitality for the wean pigs - we do the weekly barn summaries which is what we will use to assess performance - we rolled it to all of the barns because of how we buy that product, easier to put in and not hand add separately