I have some chicks that are a week old and I have given them some boilled egg yolk with water and crumbles. I did this because I wanted them to gain strength after being shipped. I would like advice on how often to give this to them, they are all doing fine, they just go crazy for it. They all still eat plain crumbles also. Thanks in advance. I have a habit of spoiling my critters and I just want to see how much is good.