First, both of your replies came through marked like this: This post is currently muted. Display post No idea why.
Maybe if it was composted for a couple years it would be ok, but as I do organic here, I'd not chance it. Also if it's a grainfed operation, chances are good there's roundup used at some point. Another reason I would not use it. If it is grain fed, chances are very good there's antibiotic use because of what grain feeding does to cow insides. And finally, grain feeding promotes perfect conditions in the cow's gut for e.coli which then passes out in the manure. You got kids running around there....
Not something I'd be bringing in, due to all this. If it was a grass fed operation, most of these conditions would not exist...