My 3 month old Pygmy wether had surgery earlier in the month to remove numerous bladder stones in hi bladder and urethra. In hopes if preventing the stones from forming again the vet has put him on ammonium chloride, removed grain from his diet, and recommends we only feed him grass hay and forage. He also said that he should not be given any form of minerals, blocks, or salt licks. I'm worried about this recommendation because this leaves my goat with no source of selenium and we are a deficient area. I'm interested to hear some opinions in these recommendations. Should I abide by them or are these minerals and salts too important to take away?