Parasitological situation assessment on otodectosis of cats in the Russian Federation

The purpose of the study is to review the distribution of cat otodectosis in the territory of the Russian Federation. Cat otodectosis is widespread in different climatic and geographical zones of Russia. Currently, there is a tendency towards an increase in the incidence of otodectosis in small domestic animals. This is due to various factors - an increase in the number of animals, the lack of preventive treatments. Animals of both sexes are at risk for the incidence of otodectosis: outbred and belonging to breeds; crossbred cats that are on a mixed method of keeping; animals that have a lot of contact with other animals. Extensiveness of invasion in different regions varies considerably. The minimum indicators of the extensiveness of invasion are 3.4 %, and the maximum - 80.3 %, which depends on the time of year, sex, age and method of keeping animals. The highest incidence rates of cats with otodectosis were established in the cities: Barnaul - 80.3 %, Armavir - 76.44, Omsk - 73.4, Vladivostok - 75, Novosibirsk - 55.6±11.7, Krasnodar - 50 %. Male cats are more susceptible to otodectosis: among the patients there were 77.7 % of males and 22.3 % of females. An analysis of the age composition of sick cats showed that kittens aged 1-12 months most often suffer from otodectosis (EI is 30.65-100 %), somewhat less often at the age of 13-36 months (EI - 45.16-75.0 %) , in animals older than 3 years there is a decrease in the incidence rate (42.8 %). The highest incidence of skin diseases was found in outbred cats (48 %), mestizos (21 %), British Shorthair (11 %) and Russian Blue (9 %). High infestation with otodectosis was found in the Asian tabby - 33.3 %, Persian cats - 27.8, Turkish Angoras - 25.0 %. Extensiveness of invasion of purebred cats and crossbreeds is 24.2 %, and of a domestic cat - 20.0 %. The lowest percentage among the studied breeds was in the Siamese cat - 6.7.