White stuff on butt

[trudyg]

This is my hen with white stuff on her butt. The white stuff is on the outer edges of the feathers and appears nowhere else on any of the girls. I have never seen it on the roo. Sometimes I'll see this all day long, other days it seems to be there for a short time and then is gone until next time. I have treated with ivermectin for suspected scaly leg mite, then with permethrin spray for all other mites, and then with wazine for suspected gape worm--all with appropriate follow up treatment, cleaning of coop and space, etc. I see no hint of any pests anymore at all, but this white stuff persists. Several of them are molting, but this white stuff has been going on for some time now and doesn't seem to bother them at all. I'm hoping to hear that it's residue from egg laying or something else benign. Any thoughts?

 

[Chicken_Guru]

This is my hen with white stuff on her butt. The white stuff is on the outer edges of the feathers and appears nowhere else on any of the girls. I have never seen it on the roo. Sometimes I'll see this all day long, other days it seems to be there for a short time and then is gone until next time. I have treated with ivermectin for suspected scaly leg mite, then with permethrin spray for all other mites, and then with wazine for suspected gape worm--all with appropriate follow up treatment, cleaning of coop and space, etc. I see no hint of any pests anymore at all, but this white stuff persists. Several of them are molting, but this white stuff has been going on for some time now and doesn't seem to bother them at all. I'm hoping to hear that it's residue from egg laying or something else benign. Any thoughts?View attachment 1132433

Most likely their form of urine -- they poop and pee out of the same hole, as well as reproduce and lay eggs.

 

[azygous]

That's "over-spray" or "dribble-butt" as I call it. It can sometimes indicate worms, but mostly it's because the individual lacks enough force when evacuating the bowels to shoot it clear of the feathers. I've yet in all my years to see a roo with this problem.

 

[rosemarythyme]

You can trim some of their butt feathers if it starts caking up. As long as it's not too bad it shouldn't bother them too much either way.

 

[trudyg]

Thanks. I thought something was wrong and I needed to fix it but had no idea what it could be.