I'm expecting 25 chicks any day now, and I want to avoid as many problems (of course), and I'm totally new at this, so since vaseline helps after pasty butt is cleaned off, I'm wondering if I trim feathers and vaseline their little tushies immediately, will that prevent it? If not, what might? I know feeding egg yolks has been suggested, and also I've heard feeding ground oatmeal (how much, how soon?)...any other pre-remedies? ETA: I have a tube of straight 100% zinc oxide, nothing added. Will this be OK or will it harm the chicks?