Oh, I just read the post about your little one you lost . So sorry anyone have advice in prevention of pasty butt, or is it just something that happens sometimes?
It happens. If folks watch for it and clean booties when they see it, it is not a big deal. Obviously, it can be deadly. The brooder light heat is a huge contributor; higher heat = higher liklihood of paste. They need a place to go that's out of direct light; fresh water, and I always give yogurt.
It does not need to be hugely problematic. I check butts several times a day and clean every single time I see anything questionable.