Keep your new chickens separated for at least 30 days.
If they were my birds, I would worm all of them (old and new). The worming will help get rid of any external as well as internal parasites. Of course, be sure to check your new birds for mites or lice and dust them too.
I use Eprinex pour on for my birds. 1/2 cc for large breed, and 1/4 cc for bantams or smaller chickens. Pull away the feathers on their back and administer it on the skin.
Some people use Ivomec pour on or oral and other medications. You might check the Predators and Pests section for additional information.
Yes they do but i think this is the better one as the birds are molted better, it is Sat, so it would be to late to enter,
Shawnee , is a good show but just to far , i went last year,
But will be at Colage station at the BBC, Also they have a Bantam show in DEC, at fort Worth Haven't heard dates as of yet