I run them under water and but them in my chopper, then I feed them sometimes just put on ground with crushed corn, I was told it helps harden the eggs, but then for a month I have not been getting eggs someone said they give them salt was wondering what that would be, we have had chickens for 5 years and never had a problem, we do give them oats like we give our kids and a horse feed looks like rice shape also give it to our rabbit they love it, the rabbit was right next to them and she kicked feed out of cage chickens right there to eat it so I started feeding it to them, I have always given my chicks the shells never but in oven or micro just let set till next day then crushed them and give them.