Separation anxiety training for the left behind horse
Hi, so about 2 weeks ago I got 2 horses. A gaited grade gelding of unknown age, some vet guessed 8 another guessed 15. And the other is about 8 months old. The 8 month old has been a dream to work with. The gelding I have been having a little trouble. My main complaint is that he has HORRIBLE separation anxiety, when he is the horse left in the barn or pasture. He isn't really much of an issue if I have him on a rope. He sometimes calls on the rope. However he won't quit screaming if he is in the barn. He still screams if I am in the barn with him but much less if I get him on the lead rope. He also managed to get an injury within his first 3 days here. He was quiet in the barn until my filly arrived. Now he screams and paces if she is more than 15 feet away and he is still in his stall. I have also been slowly getting them adjusted to grass since they were both on hay, no grass. I expect that to be over by Monday. So I am hoping he is healed enough by then that I can start trying to figure out how to do this. The vet is expecting the injury to be another 4-6 weeks. He's not currently limping but given that it is on the back of the pastern it gets opened if he moves and it is slowing healing.
Most of what I looked up online recommends working them hard by their buddy and letting them relax away from them. I have no problem doing that when he heals. I just am not sure that would actually solve the problem since he is so much better when I am working with him. The issue is when he isn't being worked.
So I guess I am just here looking for advice on how to get him to chill when he is alone in the stall? Is this a keep them apart for periods of time several times a week thing or is there something more effective I can do? I have been giving them like 15-30 mins apart by letting her graze first alone. He still paces a bit but it seems less frantic. But screams like every 10-15 seconds.