It sounds like your calf is experiencing respiratory distress. This could be caused by a number of things, including:
* Pneumonia: This is a common and serious condition in calves, especially young ones. It can be caused by bacteria, viruses, or parasites.
* Bronchitis: This is an inflammation of the airways in the lungs. It can be caused by infection or irritation.
* Asthma: This is a chronic condition that causes inflammation and narrowing of the airways.
* Foreign object aspiration: Calves can inhale objects like hay or grain, which can block the airways.
What to do:
* Contact a veterinarian immediately. They can diagnose the problem and recommend the appropriate treatment.
* Keep the calf warm and comfortable.
* Provide fresh water and a light diet.
* Monitor the calf's breathing and temperature.
Important: Never attempt to treat a sick animal yourself without consulting a veterinarian.
I hope your calf gets well soon.