Help! I Think Some of my pullets Have respiratory problems

[kevm2017]

Hello I have 25 pullets and 2 Hens. The hens are a black austrolorp and a white leghorn. They were all pen together. 9 days ago my austrolorp started to make coughing sounds, followed by a rattling sound like if she had phlems. I isolate her immediately. Two days later leghorn started to cough wheeze like chocking. I Isolated her as well. 4 days later 5 pullets were legarthic gasping for air. Isolated them as well. I dont wanted to rush for antibiotics. First I thought of gape worms. I deworm all of them with safeguard liquid orally. I examinate them but not signs of gapeworm so I did not bother for the 3 days treatment. I offer them VetRx, powder garlic, electrolites and vitamins and apple vinegar, rotating it for about a week, The 5 pullets got well instantly. I put them back with the others. Now like 3 different pullets and making the phlems sound. They are eating and drinking just fine. My austrolorp stop making the rattling sound and only sneeze once in a while and my leghorn the same sneeze once in a while. Should I treat them with tylan 50, or amoxicilin? They dont have nasal discharge, mucus, puss in eye, they are not gasping for air like they use to. No signs of mycoplasma or coryza or gapeworms. What concerns me for the leghorn and austrolorp is the sneezing, and for the pullets is the mild rattling sound. I clean wash and rinse the coop incase it was dust problems. I dont want for my whole flock to be destroyed by an IB that I could have prevent. Sorry If I dont express or explain well, thank you all in advance

 

[dawg53]

Check for anything in the environment that might be causing the symptoms you're seeing, for example; pollen, ammonia fumes from soiled bedding, poor ventilation in the coop, pesticides, fungus or mold inside the coop or in bedding, blowing sand or dust carrying fungal spores etc...
Also, have you introduced new birds into your existing flock without quarantine for a minimum of 6 weeks? Even with quarantine, there are some diseases that have long course times and then there are carrier birds of certain diseases.
Finally, it would be best to submit your sickest bird for necropsy to find out exactly what you're dealing with. You can contact your local extension office and find out how to go about doing this.

 

[Eggcessive]

Sorry about your chickens. I think I may have had infectious bronchitis in my flock, possibly by wild birds. It travels through the flock over months, with sneezing every few minutes as the most noticeable symptom. Eggs can be wrinkled or have thin shells, watery eggwhites, and slowdown in laying.

I got rid of it by not hatching or getting any new chickens to my flock for a year after the last one was sick. Otherwise it just keeps passing on to a new generation. Of course IB can be complicated by other more serious diseases, such as MG, coryza, and ILT, and fecal bacteria which can affect the air sacs.

Dawg53 is right to suggest looking around for a cause, and getting a sick bird tested. States are all different, but you may be able to ask about testing through your state poultry lab, extension agent, or by contacting the NPIP in your state or local area.