Salmonella lives in all kinds of water containing material. Coliforms (like E. coli) are more pathogenic and do get killed mostly if there's air around.
Then again, garden soil hosts a lot of dangerous crap, like C. difficile, heliobacter, and in some parts of the world still amoebas with living black plague inside of them - if memory serves me right there are gophers or ground hogs in the US affected by it. The only stuff I would never touch is rodent or predator crap. The stuff living in there is insane.
Goat manure would be a good source of fibers that feed out microbes. But.. The manure can also contain seeds. Chickens, like other birds, use rocks to grind those seeds to pulp in their stomachs.
I'm using a mix of poultry and cow waste. There's some cool stuff going on when microbes and plants get extra keratin, the protein which feathers (and finger nails) are made from.
Anatomically, goats and chickens differ a lot. Goats don't pee from their crapper, chickens do. Goat poop contains more ammonia, but loses it and faster than most chicken poop.
Dry the crap out of that crap, and it should be fine as long as people don't use it in excess.
