over the last few years ive raised hundreds of chicks (chicken, duck, turkey, quail, pheasant) and never ever had to deal with pasty butt. until this week. batch of bought eggs from a local breeder. hatched last wednesday so nearly a week old. every single chick that hatched from these eggs is suffering with pasty butt, i didnt notice at first and lost a couple but am now washing fuzzy butts every day and applying vaseline after seeing the cause. they are in a brooder with about 40 other chicks (hatched from my own eggs) none of which are suffering pasty butt so im ruiling out an enviromental factor and food problem. ive heard of people having a few chicks with pasty butt, normally one here and one there...but a whole group? all same breed, same parents, same hatch. could this be a genetic defect or just plain bad luck. i bought these chicks to hopefully get some australorp hens to put with my roo's to start a breeding flock. i dont wanna breed them though if theres a chance this is a genetic problem??