I have a serious question to ask I have pretty much a flock of 21 birds and I have 4 turkeys. And I have a flock of 17 birds and then 4 rooster separated to go to sale. And almost all of the 17 birds have a scab on the bottom of each foot. I am thinking it is bumble foot but I am not sure if it has spread that fast because I have checked every single bird the day before and washed there feet off and there wasn't a thing on there feet but now today they have a small tiny scab. So is this bumble foot or what is this or is it nothing to worry about. I have already done surgery on one hen but I can't be doing survey to all of them and replacing bandages once a day to all 17 of them. Sorry you couldn't get photos.
Reinspect each one and "grade" the bumblefoot according to the link below.
IMO, I would only dose the ones that have the absolute worst feet - but you may want to consider doing surgery, usually Penicillin would be given as support to help fight infection
after surgery, if there is a problem with healing. If the bumblefoot is not extremely bad, then you might get away with soaking/applying ointment and wrapping - no surgery, but this would need to be done consistently for a while until you see improvement.
I understand you have a lot of birds, so treating each one will be difficult. Since you have quite a few that have it, you may also want to evaluate the height of your roosting, making sure they are not getting cut/abrasion on their feet from something that can be fixed.
That said, if you feel like you need to go ahead with antibiotic treatment it would need to be administered by injection - NOT by mouth.
http://www.poultrydvm.com/featured-infographic/understanding-bumblefoot-care