Rabbit fur mite

Cheyletiella parasitivorax is a specific species of mite belonging to the order Trombidiformes and the family Cheyletidae. Often referred to as the rabbit fur mite, it is a highly specialized ectoparasite that infests domestic and wild rabbits. It is not a plant pest, but rather a significant veterinary pest that causes the dermatological condition known as cheyletiellosis.

The biology of these mites is characterized by their close association with the host. They spend their entire life cycle—egg, larva, two nymphal stages, and adult—on the surface of the rabbit's skin. The adult mites feed on skin debris and tissue fluids, causing irritation. Their ability to survive for short periods off the host in the environment makes management and sanitation particularly challenging.

The hallmark of a Cheyletiella parasitivorax infestation is the production of excessive flakes of skin, earning it the nickname "walking dandruff." The mites reside within these flakes in the upper layers of the fur. Clinical signs include crusting, scaly skin, hair loss (alopecia), and intense pruritus (itching). The damage is typically visible along the back, neck, and shoulder regions of the animal.

The harm caused by these parasites is both physical and economic. Infested rabbits experience significant discomfort, leading to poor grooming, reduced appetite, and overall decline in physical condition. Furthermore, since these mites are zoonotic, they can cause transient skin lesions in humans handling infested rabbits, making it an occupational hazard for rabbitry staff.

Effective management strategies require a combination of direct treatment and environmental sanitation. To successfully control an outbreak, producers should focus on the following:

• Administration of appropriate acaricidal treatments, such as selamectin or other veterinary-approved products.
• Strict quarantine protocols for new animals entering the facility.
• Thorough cleaning and disinfection of cages, grooming tools, and rabbit enclosures.
• Regular screening of the rabbit population to identify and treat asymptomatic carriers.