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Biebel, Sandra (2007): Untersuchungen zur Populationsdynamik von Flöhen auf Hunden und Katzen im Großraum Regensburg. Dissertation, LMU München: Faculty of Veterinary Medicine
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Abstract

Investigations on the Population Dynamics of Fleas in Dogs and Cats in the Region of Regensburg, Germany The objective of this study was to compile epidemiological data about the occurrence and distribution of flea infestation by parasitological screening of dogs and cats in the area of Regensburg. Simultaneously, pet owners have been interviewed by use of a questionnaire regarding their experience with flea infestation of their animals and in the environment. The mean infestation rate for dogs was 10 % and for cats 16.3 %. The highest infestation rate for dogs and cats was in August with 20 % for dogs and 36 % for cats. The lowest prevalence of fleas was reported in Januar for dogs (2 %) and in December for cats (8 %). The dominant flea species for dogs (75 %) and cats (92.2 %) was Ctenocephalides felis. Furthermore, Ctenocephalides canis, Archaeopsylla erinacei, Pulex irritans, Ceratophyllus garei, Ceratophyllus gallinae and Spilopsyllus cuniculi were found. With respect to the living sights remarkable more cats from the rural areas (21.6 %) showed a flea infestation. A similar finding could not be confirmed for the examined dogs from urban (9.4 %) and rural (10.6 %) regions. Moreover, it was observed that dogs living in groups (16.7 %) showed significantly higher rates of flea infestation than single husbanded (5.2 %) dogs. There was no correlation between the rate of flea infestation and the status of husbandry (group or single) by cats. Long-haired dogs (16.3 %) showed much higher rates of flea infestation than short-haired (3.9 %) dogs. The same correlation could not be confirmed for cats. The need for efficient and preventive flea control in animals and in their environment is also reconfirmed by the results of single case studies which have been conducted in households with animals already infested by fleas. Thus, on sleeping zones and near dogs and cats infested adult fleas have been confirmed but also flea excrements, flea eggs and flea larvae. These results impressively demonstrate that the narrow environment is a source of flea infestations.