I have used chicken manure for many many years with good success. Personally I have used both composted and non composted manure. You must be very careful with noncomposted chicken manure as it can burn and or kill your plants. I normally use 1 part manure non composted with 10 parts of my soil mix. You also can make a tea with the manure on mature plants and water with this. Good Luck and planning ahead next time to compost in with the soil you are going to use for a couple of months.