Salt or Mineral Blocks

Does your horse not consume sufficient salt or mineral blocks that are either hanging on the stall or T/O wall or on the ground? Purchase a small block of salt or mineral block, then using a hack-saw, cut it into some semblance of quarters, and place one of the quarters in pieces into his grain bucket. While eating the grain, and in cleaning out the bucket, he will get sufficient mineral nutrients from this moving of the block pieces away from his grain, and from licking up the grain. Each quarter should last the average horse approximately one to two months in the grain bucket.