In order to know what the birds have for sure blood tests will tell you. You could treat the birds with what I use and clean up their environment at the same time, then put the birds back after they have been treated and their coops have had enough time to air out from the bleach water spray, 5 days would be enough time for that to air out.
Do you currently have any birds right now that are showing any respritory symptoms? How do their combs look for color? Are you hearing any rattly breathing?
As far as culling your birds, try finding birds that are tested clean, seriously do a search, I can tell you the NPIP is mostly what you will find and very little testing for other diseases. I know a couple of places in the country that do keep clean birds tested clean of all diseases including the Mycoplasmas. Getting clean birds won't help if you haven't cleaned up the environment, just some things to think about.
I would suggest doing a google search for temperatures that kill mycoplasmas in the eggs, that may be useful information to have. I haven't done that search. I know they told me eating the eggs was safe because we cook them at a high enough temperature to kill the mycoplasmas, and eating the meat is the same thing.
I think you need to do more research before doing anything else, and testing wouldn't be a bad idea, check with your state about the fees, there are phone numbers listed for each state in the previous posts, I'd try calling them and see if the state charges, some don't.
Do you currently have any birds right now that are showing any respritory symptoms? How do their combs look for color? Are you hearing any rattly breathing?
As far as culling your birds, try finding birds that are tested clean, seriously do a search, I can tell you the NPIP is mostly what you will find and very little testing for other diseases. I know a couple of places in the country that do keep clean birds tested clean of all diseases including the Mycoplasmas. Getting clean birds won't help if you haven't cleaned up the environment, just some things to think about.
I would suggest doing a google search for temperatures that kill mycoplasmas in the eggs, that may be useful information to have. I haven't done that search. I know they told me eating the eggs was safe because we cook them at a high enough temperature to kill the mycoplasmas, and eating the meat is the same thing.
I think you need to do more research before doing anything else, and testing wouldn't be a bad idea, check with your state about the fees, there are phone numbers listed for each state in the previous posts, I'd try calling them and see if the state charges, some don't.