You don't want to encourage egg eating. Eggshells are made mostly of calcium carbonate. Chickens need lots of calcium so that their eggshells are thick and less breakable. ... You can buy commercial supplements that add to their water avi-calcium, shell grit , calci-protein blend, or simply feed them back their eggs!

Is it OK for chickens to eat egg shells?

It may seem strange to feed chickens their own eggshells, but the shells provide a good source of calcium for them. When you want to start making eggshells into feed, make sure you dry and crush them first so they aren't easily recognizable. When you're finished, your chickens will stay healthy and produce more eggs!

How do you prepare egg shells for chickens?

Spread your collection of half crushed shells on a baking sheet and bake until the shells become brittle. (Any temp and any time period can work. If you need a baseline, try 350 degrees for 5 to 10 minutes). Some people say you should bake the shells to kill bacteria.