I had a cream legbar hen drop dead on me...on a Thursday so could not even send it fresh enough for a necropsy and I refuse to kill a cream legbar on a Monday for a necropsy. I foolishly took in some birds from a friend (never again will I do that). Pretty sure my precious cream legbars are infected with Mycoplasma (i am unsure if its gallisepticum or synoviae) in any case its a Mycoplasma. I quarantined for 30 days when i got these birds. I noticed a bird sneeze. Removed it from the group. Then found a cream legbar dead a few days later (unsure if this situation is related) I REMOVED ALL birds from my "friend" away from my cream legbars. i have 3 (of my friends birds) that are visibly sneezing one has coughed and 2 have noticeable rattled breathing but u can only hear at night when sleeping and one has small eye bubbles barley noticeable) I am slaughtering them tomorrow obviously. It's a shame because they lay eggs DAILY!!! and overall seem very happy. Next question is. Obviously it's too late my cream legbars have Mycoplasma. So now what? Do i KILL ALL birds? And my cream legbars? OR can I have a flock positive with mycoplasma live out their lives happy on my farm? Is having Mycoplasma Positive hens a major investment? They r all laying and I've raised them since 3 days old. If i treat often (low dose) with tetracycline how long is the withdrawal? I keep reading mixed info on withdrawl times. I sell eggs so if i would be constanlty treating sick birds and withdrawals are 30 days.l snd i have to treat often...i might as well slaughter them all they will be of no use. To kill them all or to keep them all? But slaughter the obvious sickies.... So my question is. Should i keep my Mycoplasma Positive birds? Or just OFF them all??