Join Date: Oct 2014
Location: Central Hill Country Texas
What have you tried so far? Is the problem he won't go in or won't stay in or both?
There are tons of methods, this is one I used with good success for starters with a really frightened but food motivated horse. It does takes time though.
Park the trailer in his pasture (stabilize it well) open it up and leave it there. When you go to feed him put the feed on the back ledge so he is sticking his head in there to eat and let him eat it there for a few days. This takes the edge off the fear. Work it deeper into the trailer until he has to load to eat in the trailer. Then start working on trying to get him to go in when you ask him to using whatever method will work best for him.
“You spend your whole life with horses and just about the time you think you have them figured out, a horse comes along that tells you otherwise.” –quote from my very wizened trainer