My 18 year old gelding has had loose manure on and off since I bought him in March. We changed his feed very gradually after buying him so I attributed it to that. Then I had a feed change again a few months ago when we decided he would be better on a ration balancer. Again, a little loose manure and then was fine. However shortly after the temperature started becoming very hot (the last month or two) he has had the loose manure more often. It seems to be a bit worse than before as he now has it down the back of his legs. It does seem that it may be related to the temperature, as the few cooler days we have here and there he goes back to normal.
Is this something to be concerned about to call a vet out for? Or do I just watch and monitor changes?
I do remember a camp horse that had the same issue every summer but then was fine in the winter.