It is possible your horse doesn't like treats, but it's not possible that your horse doesn't like food. All horses like food, but not just like.. they NEED food... food is and always will be a primary reinforcer for your horse. They may just not be wanting the food you're offering, or the fact that you are the one offering it, OR they may not be wanting to do what it is you want them to do to get the food because there is a conflicting motivator that is more powerful in that moment than food... But they do want food. Let me explain further.
If your horse eats hay, grass, or grain.. it likes food. You could u