1. Treat with Wazine or another treatment, and don't eat eggs for the time you decide is right for you (internet sources vary from 5-17 days).
2. Treat for cocci (use Corid) too, since roundworms & cocci are often found together.
3. Treat for roundworms again in 30 days.
I lost a bird to this dual parasite infestation in March (RIP Dumpling) and it made her so, so sick.
Believe me, I am NO EXPERT and am fairly new to chooks, but those DEFINETLY look like worms! You'll probably get alot of varying responses of what wormer to use, but I choose Verm-X. It comes in crumbles or liquid form, and I choose the crumbles. Click here for the site
My understanding is that this product has been used widley in the UK and is now available in the US. I ordered it because it seemed safe, but others reccomend Ivermectin. If nothing else this will *bump* you so someone more experienced can help. Best of luck to you!
Yup worms they are...look like roundworms. You can treat with Wazine for those or go ahead and do a broad spectrum for all parasites such as ivermectin. Just watch the egg withdrawl period on the products...and toss the eggs during that time. Also, remember to re-dose in 10 days I think it says.
But those are worms. You may want to research, I think they are transmitted through the ground and you may need to treat all of your chickens. Gosh, hope mine never get that. I would have a hell of a time treating all of them.