fresh wont work like @ GrowGorilla says, too hot.
chicken poop wont work in hydro, stinking rotting, sludge
composted chicken poop is all I've used for years in plain promix, and water only.
It has every needed nutrient necessary for awesome growth.
composting poop sucks, I now buy mine from Organicare, cost me less than 3 bucks for the life of a plant.