Any guesses on what could be wrong with my hen?

[RuffIedFeathers]

This hen in particular is having diarrhea and it's sticking all over her feathers. She is about 9 months old, silverudd's isbar. A couple other hens have a more mild case. I've had 2 fecals done and they both came back fine. I'm not sure what to do next. She seems to be a little less active, but nothing else notably wrong. I would love any advice on what you would do or try. I appreciate any guidance. Thank you!

 

[Wyorp Rock]

Give her a wash up, trim some of her fluff.

See that her crop is emptying overnight, look her over for lice/mites.
Feed her a nutritionally balanced poultry feed and limit treats.

 

[RuffIedFeathers]

Give her a wash up, trim some of her fluff.

See that her crop is emptying overnight, look her over for lice/mites.
Feed her a nutritionally balanced poultry feed and limit treats.

I did trim her feathers and cleaned up her bum.

Crop is emptying. I have noticed she's starting to lose weight.

No signs of mites/lice on her, or any of the birds.

They receive a good quality food (bar ale or Kalmbach). I don't usually give treats, they do get fruit and veggie scraps occasionally, but not daily.

I'm wondering if she could have vent gleet? I added apple cider vinegar to their water. Going to get another fecal done this week. I ordered new bedding (I use chopped hemp and can't find it locally) and will do a complete clean of the coop as soon as it arrives. I really don't know what else to do...

 

[Wyorp Rock]

Getting a fecal float is a good idea.

Vent Gleet is usually a continual white pasty yeasty discharge. https://www.tillysnest.com/2012/12/...eferred,sometimes smell like fermenting yeast.