I have never owned a horse, but I just couldn't let it go to the slaughter, he is beautifull, well I think so, he is 4 years old around that, I am just worried ...How much water do they drink?????, he has a field full of green sweet grass, I have a big tub with water and fills every time he and yes the cow take drinks, the cow is fine, I just never see the horse drink.....Also, should I be worming him on a regular bases, I had the farria come to do his hoves, he said he looks like he has a little arthurites in his leg, but I am going to get a vet to check him out, it is just the water thing,I am more worried about just yet.....