You need to be able to figure out ppm calculations to know where you stand with trace minerals. PPM refers to Mg per kg of feed. Your feed at .5 ppm provides .5 Mg of Se in 1 kg (2.2#). If you feed 6#, he gets 1.4 Mg Se. (6 divided by 2.2 x .5). He should be getting 4-6 Mg per day. If your forage can't provide the other 3-4 Mg of Se, than you need to supplement.
Posted via Mobile Device