My 2yr old gelding has had ongoing issues with loose poop. Sometimes it's worse, sometimes it's better. Lately, it's much much worse... to where his tail is always caked and his hind legs are covered in dried runny poo.
I've checked him for worms and he was all clear as of last month. I cut out all of the alfalfa in his diet because I'd heard it's too rich for some horses. I've been feeding him Probios powder, which doesn't seem like it's made much if any difference. He's currently eating grass hay, grass pasture, and getting a basic ration balancer... nothing much else.
I'm considering trying out this stuff... it seems like there's more to it than the Probios, and decent reviews: http://www.smartpakequine.com/ultrae...x?cm_vc=Search