Around here if it rots it goes into the compost pile. That includes chicken parts when we’re processing the meat chickens. Hold on! All the gardening books insist that you can’t compost meat. Well, you can. Everything rots and given enough time and the proper conditions it turns into nice black humus. Nature is very efficient and you can really see it in action in a compost pile. We let our chicken compost go for two years so that the microbes have a nice long time to do their work. In the end, aside from an occasional bone, we end up with great compost.
There is a caveat though. Chicken guts don’t smell the best for the first couple of weeks as they are rotting. In fact (big surprise) rotting chicken guts are really smelly! We do our best to minimize the smell mixing lots of straw and other high carbon materials in to help combine with the nitrogen rich chicken parts. After the first couple weeks the smell dies down but as we’ve increased our batches of chickens from 25 to 50 though it’s gotten pretty stinky around the compost piles.