Just as an experiment, I have dug up a portion of the chicken pen floor--which is composted chicken manure--and put some of it into a bucket, which I have filled with water. I dug three five-gallon buckets full of the composted chicken manure mixed with hay and dirt. I put the bulk of these buckets into a large rubbermaid-type trash receptacle and put the lid on it. I want it to "cook" a little longer. I had put some grass clippings in the receptacle last week after mowing the yard.
I drained off some of the liquid in the bucket filled with the manure/water mixture into a plastic jar (used whey protein container) and poured it on the blackberry bushes, fig trees, blueberry bushes, and tomatoes. Yes, it goes a long way.
Now to wait and see if it boosts the production of the plants....so hard to wait!