@TwoCrows, I once had a brand of feed that when it got wet it went rancid very quickly. Because it was high in some type of fat, a few that ate it started behaving a like this, though mine were much worse.
They were treated with vitamin e and recovered 100% in 2 days.
Anyway, I guess what I'm trying to say is I like your suggestion of giving them vitamins.
http://www.poultrydvm.com/condition/encephalomalacia
Funny you should mention feed, I was actually thinking the same thing, but wasn't sure.
Chicks are SO effected by the lack of proper vitamins either in the feed or lacking them from a genetic standpoint. So when in doubt, add vitamins!!
