Got a chick from the leghorn pullet bin at TSC a week and a half ago. It was the only one with pasty butt. We have given her nutri drench in her water the first few days, then switched to apple cider vinegar for a few days and today we are trying a probiotic/electolyte mix in her water. We had to seperate her just a few days after getting her because the other chicks picked her open and made her bleed. We've had chicks with pasty butt before but this is different. Her vent is red and she seems to have a yellowish liquid that oozes out which is thicker and kind of puts a coating over the opening. We use warm water and a q-tip several times a day to clean it apply a little coconut oil. She is eating, drinking and otherwise active and acting normal. I was thinking maybe she had an injury to her vent during sexing? Any ideas what it could be and what we can do for her?