What started out as a joke - me telling my neighbor that I would trade him 5 dozen eggs for 5 chicks he got in his broiler houses today - is not such a joke now! The neighbor told me that he will be culling at three weeks any chicks that aren't growing at the rate they need to for commercial chicks. The chicks are perfectly healthy, just not fast enough growers. He said any chicks that are still able to get into the chick feeders at three weeks old (vs. the large feeders) are culled. Having this chicken addiction thing I said sure bring em on! What have I gotten myself into?!? Setting a brooder up isn't a problem. The chicks are less than a day old today, so I have three weeks to get that all set up. My question concerns the fact that these chicks have been vaccinated for everything under the sun and my full grown chickens have had zero vaccinations, nada, none. I have a very healthy, hardy flock of free range birds. Would the new chicks ever be able to be around my birds, without risk to my current flock? I have tried in vain for several months to get some battery hens from a local farmer. People like him aren't too fond of backyard chicken keepers like me. Whereas the neighbor that has the commercial broiler houses admires my free range flock every chance he gets. Taking these chicks I would be saving a few from a too short, terrible life. What to do??????? Please help!