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Snoring and Nasal Obstruction in Rabbits

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Stertor and Stridor

 

Did you know rabbits snore? Even occurring while they are awake, it is generally a result of blockage in the animal's airway. Typically referred to as stertor and stridor, it can also occur if nasal tissues are weak or flaccid or from excessive fluid in the passages.

 

Symptoms

 

The symptoms, signs and types of stertor and stridor depend on the underlying cause and severity of the condition. For example, an extremely stressed rabbit or a rabbit with a lowered immune system may sound excessively hoarse while breathing. Other typical signs for rabbits suffering from stertor and stridor include:

 

  • Sneezing
  • Rapid or loud wheezing sounds during breathing
  • Nasal discharge (sometimes due to sinusitis or rhinitis)
  • Discharge from the eyes
  • Lack of appetite
  • Inability to chew or swallow
  • Oral abscesses (especially in the teeth)

 

Causes

 

Rabbits tend to be nasal breathers and any physical deformity or unusual nasal structure can result in a lower-pitched (stertor) or higher-pitched (stridor) sound emanating from the airway or nose.

 

There are, however, many other causes for stertor and stridor in rabbits. These include:

 

  • Sinusitis and rhinitis
  • Abscesses, elongated teeth or secondary bacterial infections
  • Facial, nasal or other trauma affecting this region, including bites from other insects or animals
  • Allergies and irritants including inhaling pollen, dust or other insects
  • Tumors that lodge in the airway
  • Dysfunction of the neuromuscular system, which may include hypothyroidism or diseases affecting the brainstem
  • Swelling and edema in the upper respiratory system
  • Inflammation of the soft palate or throat and voice box
  • Anxiety or stress

 

Diagnosis

 

To diagnose the animal, a veterinarian will first determine where the sounds are originating from in the rabbit. They will then conduct various lab tests, including X-rays, which are used to explore the rabbit's nasal cavity and identify any facial abnormalities or signs of abscesses and bacterial infections, such as Pasteurella. Other procedures may include collecting cultures.

 

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