INSECTS: Demodex, Red Chicken mite, and Fowl mite Flashcards
Specific to dogs, what mite is also known as the follicle mite?
Demodex canis
True or False: Demodex can its eggs can be detected in the feces of puritic animals, as well as a skin scraping.
True
Transmitted from mom to pups, where can D. canis be found?
Entirely in hair follicles and sebaceous glands
What pathogenesis is associated with Demodex canis?
Localized demodicosis = alopecia, erythema
Generalized demodicosis = 5+ affected areas, alopecia, red mange, superficial pyoderma, pustules
True or False: Demodex mites are normal inhabitants of the skin in dogs, and would not indicate disease.
True
What can be used for treatment of Demodex in dogs?
Amitraz (Mitaban) and Bravecto
What is the common name for Dermanyssus spp.?
Red chicken mite, Roost mite of birds
What type of mouthpart is associated with Dermanyssus spp.?
Needle-like
What morphologicla difference is associated with D. gallinae compared to Ornithonyssus?
A more posterior positioned anus on the anal plate
Dermanyssus spp. will be more active at _____, and hide in ________ as needed.
Night
Crevices
Both Dermanyssus spp. and Ornithonyssus spp. are associated with -?
- Changes in behavior
- Weight loss
- Reduced egg yield
- Disease transmission
What common name is associated with Ornithonyssus sylvarium and Ornithonyssus bursa?
- O. sylvarium* = Northern fowl mite
- O. bursa* = Tropical fowl mite
What fowl mite is the most common?
Ornithonyssus
Where will Dermanyssus and Ornithonyssus lay their eggs, and does this relate to the duration to their lifecycle? Explain.
- Dermanyssus* = off host, can survive for months off host, present only during the night
- Ornithonyssus* = on the host, can’t survive off host for 10 days, present during day and night
