I bring more bad news. Another duckling died. The one I was talking about before is not stable. But another different yellow Pekin duckling descended so rapidly to death that I didn't even have time to write about it. It had the same symptoms. Now five Ducklings are in sickbay with similar symptoms.
I'm so sorry, and I apologize I haven't seen your posts.
Basing off on how many ducklings are dying, and all of them are now showing symptoms, I think a respiratory disease or a fungal infection may be a culprit. Brooder pneumonia is a common cause of heavy breathing, sneezing, and gaping in ducklings. It is often caused by wet damp bedding.
There is no cure for brooder pneumonia, only supportive care, and environmental corrections. I would move the ducklings to a temporary location, and bring their brooder outside, and do a thorough disinfecting with bleach, and dispose of all the bedding, clean the waterers, feeders, etc. After that move the ducklings back into the pen, and try to keep the bedding as clean as possible, as well as the whole setup. Putting the brooder near light may be good. I would add vitamins to their water, and keep tempting them to drink.
If you lose another duckling it would be best to wrap it up, and set it in the fridge until you can send it off to your state veterinary necropsy lab. Sending it there, you'll be able to get a good idea of what exactly is going on. Most states charge a minimal fee.
https://www.metzerfarms.com/PoultryLabs.cfm
https://www.freedomrangerhatchery.c... a non-contagious,and many other bird species.
