Respiratory issue in 2week old

[UnLadyLike]

I have 10 chicks hatched from my own incubator one week ago. I didn't hatch as many as I would have liked so today I purchased 3 two week old chicks from a breeder.
I put them all straight in together and they went really well. I noticed that one of the new chicks was breathing very fast so assumed it was stress and watched her closely. A few hours later Her breathing never slowed and she started gasping once every ten minutes or so. After lots of observation and careful consideration I seperated her and put her in her own little brooder box. Obviously this was very stressful for her and I'm so worried I have done the wrong thing but I'm also terrified of getting the others sick.

Her resting breathing rate was 90 breaths per minute. Gasping every 5-10 mins. She was eating and drinking. What little feathers she has were not puffed up. She did seem more agitated than the others, didn't settle entirely but was sleeping on and off with them all.

Should I also remove the other two that she came with even though they look healthy and happy?.
She was in with everyone for 6 or so hours. Has she possibly already spread something to my others?
Is there anything I can give to her to help and the others to prevent a respiratory infection?
Google tells me she must be sick but could it really just be stress, and so I have therefore stressed the poor little darling even more?
The temperature was not hot and none of the others were showing any signs of heat stress or rapid breathing.

I contacted the breeder and she said they were all perfectly fine before selling them to me.

 

[OrpingtonManiac]

I'm not sure how much they know about chicks, but hopefully @Wyorp Rock or @Eggcessive can help. Good luck!

 

[Eggcessive]

What is the temperature in the brooder? Are you using a lamp, and do you have a thermometer on the floor of the brooder, or a heat plate? Could the ones from the breeder be too warm? Usually when adding new chickens I would quarantine for 30 days, to watch for symptoms, just in case they brought something with them. There is no prevention for an illness once they are exposed. I would be tempted to separate the new ones together, and watch for any more symptoms. It could be the stress of the move, but hard to know. The signs of respiratory diseases are watery or bubbly eye, swelling of the eyelids, and sneezing or gasping. Hopefully, the little one makes it. Ask the breeder if they have an antibiotic they would use. Make sure they are warm, and have good ventilation, and can’t jump out of the brooder. Good luck with your other babies.

 

[Wyorp Rock]

Can you get a video of her actions?
Upload video to YouTube and provide a link.

Have you looked inside her beak for any obstruction, what does her crop feel like?

 

[UnLadyLike]

What is the temperature in the brooder? Are you using a lamp, and do you have a thermometer on the floor of the brooder, or a heat plate? Could the ones from the breeder be too warm? Usually when adding new chickens I would quarantine for 30 days, to watch for symptoms, just in case they brought something with them. There is no prevention for an illness once they are exposed. I would be tempted to separate the new ones together, and watch for any more symptoms. It could be the stress of the move, but hard to know. The signs of respiratory diseases are watery or bubbly eye, swelling of the eyelids, and sneezing or gasping. Hopefully, the little one makes it. Ask the breeder if they have an antibiotic they would use. Make sure they are warm, and have good ventilation, and can’t jump out of the brooder. Good luck with your other babies.

Thanks for your reply. I have seperated all three of the new chicks together now. I am absolutely kicking myself for not quarantining them
She has stopped gasping but still has rapping breathing and now sneezing. I have noticed today that some of my tiny chicks are now gasping, sneezing and have a rattle when breathing. Their eyes all look ok.
Is it pretty much positive that the introduced chick has a respiratory illness and has spread it to my others right? And can I assume it's CRD or could it be something else?
I don't have an avian vet I can get to unfortunately. Is there a recommended course of action I can take to help them. understand it is incurable but is it treatable. I'm so upset.
Their brooders are the correct temp, they are using a heat plate happily and have plenty of ventilation. They are inside my house so well temperature controlled.
Thanks