I have hatched about 50 chicks, ranging from a week old down to a day old. (Most in my incubator, but the rest under 3 determined Silkie hens, who I gave 6 RIR eggs each to, a day apart, accounting for the later hatches.) I seem to have more pasty butts than usual. Not a large percentage, but several. I of course get it off, but wonder if there is something I should be doing that I'm not? They have water and chick crumbles. That's all. they are on pine shavings (which had paper towels over them, with chick feed scattered on the towels till everyone knew about the feeders) They seem active and all. Oh, and I put about a teaspoon of sugar in a quart of water for them, for the first couple days. Some of the ones with the pasty butt look a little dumpy, but mostly not. Any suggestions, or will they probably outgrow it?