I have about 20 tons of horse manure composting behind our barn and I wouldn't use it. Even with Stable Boy as a deodorant I kjnow that many organisms inhabit the manure as it composts.
Redworms are one of the major digestors of horse manure (great for fishing bait) and their guts contain eggs of intestinal parasites common to birds and mammals. I'm also against it because of the vast amounts of molds that digest horse manure. I think you would need one of those rotating drum composters ( mucho $$$) to achieve adequate and even heat to kill such things.
We use peat moss for our horse (he's allergic to cellulose-based beddings) and the coop is segregated from the horse part of the barn. There we use fresh pine shavings and DE.
Redworms are one of the major digestors of horse manure (great for fishing bait) and their guts contain eggs of intestinal parasites common to birds and mammals. I'm also against it because of the vast amounts of molds that digest horse manure. I think you would need one of those rotating drum composters ( mucho $$$) to achieve adequate and even heat to kill such things.
We use peat moss for our horse (he's allergic to cellulose-based beddings) and the coop is segregated from the horse part of the barn. There we use fresh pine shavings and DE.