I have 1 1/2 year old chickens and we suddenly had a drop in temperatures in the 30-20's. They have a heat lamp in the coop to stay warm, and was fine up until a few days ago, a couple days after the temps started changing. I noticed two of my girls just standing fluffed up, that night not able to get in coop, and they would stand or lay with eyes closed as though they was sleeping. They could open their eyes, but very sleepy eyed. With in 24 I have had to bring them in. They cannot move or sit up on their own, and one has wiry neck and their eyes are puffy and closed. They can open them but then close them back. I have put antibiotic ointment on the eyes I got from Tractor supply, I have given them water with a syringe, they cannot drink on their own, I have given them nutradrench vitamins as well, I have never seen anything like this in my flock. The poop was normal and loose, and it just breaks my heart seeing them go down hill. Any ideas what this could be. Unfortunately I don't feel they are gonna make it. I have others in the flock and I don't know what's wrong with these two and or how to treat the other hens to prevent this from happening to them. Could it have been the changes in temperatures? I am just at a loss right now. Thank you for any suggestions on what could be wrong. Here are two pictures of their faces with the puffy eyes. Like I said they was fine a few days ago, acting completely normal.
Also want to add I have two flocks, I have babies that are three months old in a separate coop on the other side of my property, these older girls was from a flock of 30, now 13, I had purchased chicks and brought them into my flock last year that unfortunately unknowingly was carrying Meresks, so these girls are exposed to that but I know some can have it and only be carriers of it and still live a healthy life. I am not sure if that could be what's attacking these two girls or if this is something completely different. My new flock has been vaccinated. Any suggestions on what this could be would be very appreciated. I am worried.
Also want to add I have two flocks, I have babies that are three months old in a separate coop on the other side of my property, these older girls was from a flock of 30, now 13, I had purchased chicks and brought them into my flock last year that unfortunately unknowingly was carrying Meresks, so these girls are exposed to that but I know some can have it and only be carriers of it and still live a healthy life. I am not sure if that could be what's attacking these two girls or if this is something completely different. My new flock has been vaccinated. Any suggestions on what this could be would be very appreciated. I am worried.