As a newbie to the chicken world I have a lot of information to take in. I do have a question to any chicken maven who can help. I have 2 brooders and one box with a 5 week old meat bird I inherited last week in the same room. None have had contact with my current flock. My question is, Are they any threat to each other (from a biosecurity stand point) because they have different origins? One brooder is meat birds from the farm store, one is a brooder full of chicks from a hatchery and Large Marge. They are all in different boxes but the same room. Thanks in advance.