That is tough to say off the top of my head for a couple reasons. One is that I don't think there is any approved medication for small flocks. Second is that in all my years, I never recall dealing with an outbreak of worms serious enough to treat. There are many on this site with more experience treating with meds than I do. I avoided any medications at all costs, preferring to control health problems with management techniques.
As was said earlier here, Safeguard may be a place to start. The active ingredient is fenbendazole. In other countries, I believe they often use levamisole for these types of worms. Very similar drugs but the mechanics of how they control is likely different enough that rotating them can slow resistance.
I know a significant number of chicken keepers ignore the restrictions on pharmaceutical drugs without a prescription.
What treatment was recommended by your vet or the lab?
Drug resistance in pathogens, in my mind, can be more problematic than the pathogen itself. Once resistance takes hold, treatments no longer work and where does that leave us?
Most people don't own microscopes and even if they did, capillaria eggs are very difficult to identify. The worms themselves aren't visible to the naked eye but can likely be viewed with a magnifying glass. You could try. These worms are usually in the crop, ceca and sometimes in the intestines so should show up in the feces, especially within hours of treatment. Especially check the cecal poop which occurs daily usually 2 or 3 times.
As was said earlier here, Safeguard may be a place to start. The active ingredient is fenbendazole. In other countries, I believe they often use levamisole for these types of worms. Very similar drugs but the mechanics of how they control is likely different enough that rotating them can slow resistance.
I know a significant number of chicken keepers ignore the restrictions on pharmaceutical drugs without a prescription.
What treatment was recommended by your vet or the lab?
Drug resistance in pathogens, in my mind, can be more problematic than the pathogen itself. Once resistance takes hold, treatments no longer work and where does that leave us?
Most people don't own microscopes and even if they did, capillaria eggs are very difficult to identify. The worms themselves aren't visible to the naked eye but can likely be viewed with a magnifying glass. You could try. These worms are usually in the crop, ceca and sometimes in the intestines so should show up in the feces, especially within hours of treatment. Especially check the cecal poop which occurs daily usually 2 or 3 times.