To me that reads that you need to swap some "respiratory tissue"..is that possible on a live chicken?Look at this:
https://tvmdl.tamu.edu/?s=Mycoplasma&species=avian&post_type=tests&test-submit=Search+Tests
looks like you can swab and send it to TVMDL for analysis -- for 35.00 for general mycoplasma and 40.00 for specific (if I read that rightly) -- less that the cost I had thought -- and something to bear in mind.
Two down..the "plate test"..is that the blood test I am thinking about for $12.50?