Good hay makes a difference. Ours is just plain old bermuda but it's good quality. They eat it fine, along with the cattle and horses. Once they walk/climb on hay they won't eat much of it...if it gets crap or piss on it they won't touch it. We hang it in cut/bent/formed feedlot panels from corral panels so they can't climb in it. Keeps it clean and less is wasted. Being above the ground reduces the ingestion of worms. Round bales will result in a lot of waste... Hanging the hay like this helps a lot. I'll try to get a pic of the hangers tomorrow.
I use a hay ring when feeding round bales.
Very little waste. They eat it all, too.
