I keep the adults and the pullets/cockerels in two separate coops , the last months I had a disease spread amongst the young ones lost some and other healed after I showed this picture to the vet he told me it's mycoplasma and to give them messipen 10% . This is one of the roos that healed , at some point he even had fluid coming out of his eye but now he is healed and very energetic . And this is a recent photo The facts are that I have flock of 13 hens which never had symptom of any disease, I culled last year their roo since I loved the fire red and blue color of this roo BUT I am not willing to endanger another outbreak in a healthy layer flock . Another fact is that blue color in chickens as well blue egg genes is something difficult to find around here and this is the only blue chicken I have . Also he is still separated from the healthy flock ,he seems fine the last month . Here are my questions to you all 1. From the first photo do you agree with the vet that the disease that hit my youngsters flock is mycoplasma ? 2. If my roo is healed (from mycoplasma or whatever he had) is he still a carrier which makes him a possible danger for a healthy flock ? 3. If I hatch chicks out of him will they be affected somehow ? Thanks in advance for any help . p.s. Please don't start arguments that ee shouldn't have yellow legs , only my black easter eggers have dark legs all the other have yellow and every single pea combed bird lays green/blue eggs , this roo carries one blue egg gene from his mother his father was a single combed bird and that's why he has such heavily modified pea comb .