I am having a problem with my 13 day old RIR too. She was constipated and really struggling to poop. I couldn't get her to take any oil, even on a piece of bread, but I got her to eat a piece of a dried meal worm dipped in oil. Is that okay? She didn't want yogurt either. I also put vaseline on her vent and massaged it and I have gotten her to poop. Now she seems to be pooping fairly regularly but she won't stop picking at her butt and it is pretty bald and getting raw. Nothing is blocking her vent so I am no longer worried about her being backed up but more worried she will cause an infection. None of the other chicks have picked on her or noticed thankfully but she just won't leave it alone. I just picked her up to clean it and it is pretty caked up down there but I can't tell if its dirty (poop) that should be clean off or if its just her skin/fuzz a little hard/scabbed from her picking at it. I rubbed it a few times with a wet, warm paper towel and then put vaseline on the exposed areas and her vent. When I put her back in the brooder she left it alone for a couple minutes and then picked at it again. Do you have any other suggestions?! So far she still seems to be acting normal, running around, eating and drinking with the other chicks and like I said, they aren't picking on her at all. I just don't want to not do something I am supposed to and her get worse. Do they ever stop picking at it? I don't know how it would get back to normal from raw if she insists on playing with it all the time.
I think I will raise their light a little more today too in case that can help. The rest of the chicks seem fine, and none of them had pasty butt issues within the first week of arriving, hers didn't start until she somehow got constipated. I had canary grit in the brooder so she may have taken too much of that, I took it out a couple days ago. Should I also add a little ACV to their water? Thanks, I am so attached to her and she was doing so well, I just really don't want her to start to decline.