Was just reading this http://chickenjunkie.com/raising-chickens/baby-chicks-with-pasty-butts/ and was wanting to ask a question but couldn't online. It states to get them to eat some mashed egg yolk or plain yogurt. What age??? Our chicks (2 of them) are only about 3 days old. I have one chick with it. Got her free from TSC because she was stuck under a water bucket, she seemed okay yesterday, but this morning she has pasty butt. I have never dealt with pasty butt before. I have been giving her ACV with a dropper, how much and how often??? Also cleaning with warm water.