Well here is the answer I came up with. I took an egg emptied it through a small hole in the fat end. I then filed it with vegetable oil stuck the probe in and glued the hole shut. Since it is supposed to simulate the inside temp of the egg I figure I can't get any more accurate. Or at least...
You need chick starter to begin with. Then when they are big enough about 2 months you can gradually switch them over to the crumble or pellets.
make sure you change their water often. Don't put the water deep they some how manage to drown themselves. You can put a shallow dish with small...