Yes you can treat them at night, just withhold feed for 24 hours prior.Okay, thanks. I'll have to turn off my automatic door so they can't get out in the yard. Would it work to do it at night? I could do it in the morning, but i would have to wake up pretty early and get someone to help me since not all of my chickens are good with being held or touched (I've got three Sumatras and an egyptian who will scream bloody murdur if you try to touch them). Also, about giving them a little bit of food at a time, I just have my feed in two big feeders, so should I just empty them and pour in a little bit of food throughout the day? My coop isn't completely separated from the run, so would it be okay to just keep them in the run until they can free-range?
You can empty the feed from the feeders into plastic trash bags and save the feed for later. Just give them a little feed at a time 4 hours after dosing, increase feed a little at a time. Then about 8-9 hours after dosing, go ahead and refill the feeders.
Keeping them in the run is fine.
Shortly after dosing your hens, you might be able to see tapeworm parts/sections, or "strings" of tapeworms excreted from your birds. If you dont see any, that means they have been absorbed in the digestive tract.
Keep in mind that not all your birds may have tapeworms, not like roundworms.