Last night I noticed by hen was a bit slow and had white poop stuck to her vent. I did some searches on this forum and thought the best thing to do would be to soak her and clean it off, which I did. She then laid an egg without a shell and seems to get some of her energy back. She laid a normal but small egg yesterday morning. This morning she had white poop which smells really bad stuck to her again, so I gave her another clean. She seems to be acting relatively normal but with a bit less energy. I'm not sure if I need to be doing something else or not?? I have rang some vets in our area but can only find one that deals with chickens and she is away until tomorrow. Something else I thought I trying was giving her yoghurt? The hen is about 8 months old and has been laying most days for the last 2 or so months. She is what we call in New Zealand a brown Shaver which I think is known as a sex-link chicken in the USA. She is quite a big hen and seems to be in good condition. We have one other hen that seems to be okay. Any suggestions of what I can do for her would be appreciated.