This is my first time raising chickens and I'm not for sure when I should start giving my chicks grit. I've looked in a few books and only on barely mentioned it - saying a three days old to sprinkle it on their food which I have been every day. Anyways it didn't say how often or any other information on grit. My chicks (buff orpingtons, barred rocks, austrolops, and aracondas) are two weeks old tomorrow and seem to be doing fine. Any ideas?