You might need to consult a vet as this could be a very serious case.
A simpler word for respiratory would be breathing. There are also words that can be used depending on the context. Such words include inhaling, panting, gasping and wheezing.
If quails are gasping, they may be thirsty or calling quietly to their mates.
Why is my yellow belly turtle gasping and squeaking
The interesting sentence can say "why" you were gasping for breath, or what happened while you were gasping. "As I was gasping for breath in the smoke-filled hallway, a burly firefighter threw me to the floor and pushed an oxygen mask over my face."
of Gasp
Agonal breathing is characterized by occasional gasping breaths.
To breath fast or sharply
Conditions such as dehydration, low blood pressure (hypotension), hypoglycemia, and anemia can present with symptoms of fainting, gasping for air, headache, and dizziness. It is important to seek medical attention for proper diagnosis and treatment.
hiccup
It can be. As the present participle of the verb "to gasp" it can modify nouns. Examples: Firefighters found the smoke-filled subway car filled with gasping commuters. Gasping onlookers watched as the huge crane fell from the roof and crashed into the street.
Bubbles from the nose could be a sign of a respiratory infection. Others signs of a respiratory infection would be clogged or runny nostrils, lack of appetite, swollen eyes, and open mouth gasping/wheezing. I would be suspicious of the bubbles if the turtle was not in the water.
gasping