I am doing most of the feeding from the barn, since I am trying to save my forty acres for rotational grazing. The alfalfa around here is extremely selenium deficient. As I understand it: the deficientcy comes from the water being applied to the crops, since down on the coast, they are also deficient in selenium and it rains 364 days down there (or so it seems). I was thinking about what dunmovin' said about the lick being a waste of money and my situation. Perhaps during the warmer months when I have my cattle out in the pasture, I should remove the tubs and just keep them around for the months of snow and cold. I also give the calves a BOSE shot in the first day of their lives to save them from white muscle disease.