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Research
3. Epidemiology, genetic
divergence and acaricides of Otodectes cynotis in
cats and dogs - Fayez Awadalla Salib, Taher Ahamed Baraka
Vet World. 2011; 4(3): 109-112
doi:
10.5455/vetworld.2011.109-112
Abstract
Otodectes cynotis mite is a common parasite of cats
and dogs, survives in the ear canal and causes
otitis externa, itching and severe complications.
The microscopic examination of ear swabs, skin
scraps and faecal samples of 289 cats and 223 dogs
revealed that mono-specific and mixed infestations
of Otodectes cynotis in cats were (24.56%)
and(6.57%) while in dogs were (7.17%) and (4.48%)
respectively. The highest rate of infestation was in
young cats and the lowest was in elder dogs. The
mixed infestations were found in combination with
Sarcoptes, Demodex, Dermatophytes, Ticks, Fleas,
Ascarids, Dipylidium and Isospora. The RAPD-PCR
proved the genetic divergence between cat and dog
isolates whereas they are morphologically similar.
Selamectin-pour on, Doramectin-subcutaneous
injection and Ivermectin-Ear drops were evaluated
two weeks post treatment. The rate of success in
cats were (96.66%) ,(90.00%) and (83.33%) and in
dogs were (77.77%), (75.00%) and (66.66%)
respectively. It is concluded that Selamectin pour
on is the best acaricide against Otodectes cynotis
in both cats and dogs. It is also needed to prepare
a vaccine in the future to prevent the infestation
with Otodectes cynotis and its complications.
Keywords: Otodectes, Epidemiology, Genetic
divergence, Acaricides, Egypt, Parasite, Pet animal.
