**The chickens are about 8 months old. None of them act sick, appetite is great, all are very active, no sneezing or sniffles. They are happily running around the yard. **I noticed most have a lot of poo stuck on their butt feathers, like they have diarrhea and their vents are VERY gooey. While watching them I noticed some had diarrhea, or just runny poo, but not all the time. **They eat purina layer crumbles mixed with half flock raiser (I thought that would be good since it's so cold) a tiny bit of cracked corn at night and some BOSS, left over fruit & veggies, raw ACV in their water a few times a week, and yogurt a couple times a week too. Egg production is down, out of 9 laying hens we've been getting 4, maybe 5 eggs a day. **they were dewormed with Ivomec in June. I don't know if this is a sign of illness or maybe they need dewormed again? If it is illness where do I start? Suggestions on antibiotics? In this area I'm on my own as far as vet care since they won't see a chicken. I would greatly appreciate any and all suggestions and help! THANK YOU!!!!