Hi everyone. I'm new to this, so please bear with me. From what I can find on research, pasty butt can be attributed to stress (shipped birds), not enough "good" protein in the diet, or too-high a temperature in the brooder. I've read to treat by cleaning the area gently, then adding either fresh yogurt to their diet or apple cider vinegar to their water. My question is: Do you separate the pasty-butts from the non pasty-butts? I'm not sure if I should be treating this like an illness (contagious) or not. Thank you!