so how old should my chicks be that are in the house be before I move them outside to the chicken tractor that is going to be their home? The older birds will be near by, but it will be much harder to keep them separate and at some point they will get exposed.I would not cull. On my list of things to do is to find hatcheries that are mycoplasma negative, but I think that most hatcheries don't test for it.
Ideal Hatchery is mycoplasma positive, and in a letter I saw from them, the say that most other hatcheries are also positive.
-Kathy