What a terrible thing to happen to you. He is the reason that backyard chicken keepers are criticized by so many, because they dive into chickens without caution and knowing what the heck they are doing. Could you ask him to move his coop on the other side of his yard? I would also put solid fencing along the wire fence. Your flock is infected unfortunately. It would be good to get some testing to know what you are dealing with since there are many different respiratory diseases. Infectious bronchitis virus is the most common and a virus, then MG or mycoplasma gallisepticum, infectious coryza or just coryza, ILT, and few others. I agree with Wyorp Rock that I would treat them with Tylosin or Tiagard.
Your hen in the pictures has gasping and rales (crackles.) If you see bubbles or foam in one eye, then you may be dealing with MG. Coryza usually is worse with a huge swollen pus filled eye and thick yellow snot. You can get your sick chicken tested through Zoologix privately and fair cost. They will send swabs to swab your chickens’ throat, but do this when one shows symptoms. Then mail it in for testing of up to 8 diseases. If you lose one, send the body in to your state vet lab, and they will do a necropsy and testing. Each state is different in cost. Here is a link for Zoologix testing at home:
https://www.zoologix.com/
Depending on what disease, and there could be more than one at the same time, you need to close your flock. All respiratory diseases make carriers of the whole flock, most for life, and infectious bronchitis for up to a year. Inform your neighbor that any chicks he has or adds are going to get whatever his birds have, even if one bird is left. Incubation time varies from 2 days to a couple of weeks for a chicken to show symptoms. Having neighbors like him is difficult enough, and you don’t want to cause a war, but you may take further action with your state vet or health dept if he doesn’t listen.
Your hen in the pictures has gasping and rales (crackles.) If you see bubbles or foam in one eye, then you may be dealing with MG. Coryza usually is worse with a huge swollen pus filled eye and thick yellow snot. You can get your sick chicken tested through Zoologix privately and fair cost. They will send swabs to swab your chickens’ throat, but do this when one shows symptoms. Then mail it in for testing of up to 8 diseases. If you lose one, send the body in to your state vet lab, and they will do a necropsy and testing. Each state is different in cost. Here is a link for Zoologix testing at home:
https://www.zoologix.com/
Depending on what disease, and there could be more than one at the same time, you need to close your flock. All respiratory diseases make carriers of the whole flock, most for life, and infectious bronchitis for up to a year. Inform your neighbor that any chicks he has or adds are going to get whatever his birds have, even if one bird is left. Incubation time varies from 2 days to a couple of weeks for a chicken to show symptoms. Having neighbors like him is difficult enough, and you don’t want to cause a war, but you may take further action with your state vet or health dept if he doesn’t listen.
