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Type of publication: Diploma Thesis
Type of document:

Year: 2010

Authors: Brunner, Claudia

Title: Vergleich des Befalls mit Eimerien bei Feldhasen (Lepus europaeus PALLAS, 1778) aus zwei verschiedenen Jahren.

Source: Diplomarbeit, Vet. Med. Univ. Wien, pp. 39.


Advisor(s):

Duscher Georg

Reviewer(s):
Joachim Anja

Vetmed Research Units:
Institute of Parasitology


Abstract:
100 gastrointestinal tracts of European hares (51 from Austria, 49 from Belgium) were observed. They were shot in autumn 2007 within the FWF-Project, supervised by Dr. F. Suchentrunk. The aim was to determine possible differences in species and intensity of hare coccidia in two separate years – 2006 and 2007. 4 out of 100 hares were free of oocysts. 7 different Eimeria species were found – the most frequent coccidian species was E. semisculpta, followed by E. robertsoni, E. townsendi, E. septentrionalis, E. leporis, E. europea and E. hungarica. A higher intensity of coccidia in Belgium in 2007 could be found, with more E. robertsoni, but less E. leporis. Possible reasons for these changes are weather and climate. Therefore we analyzed the weather conditions of both years. In fact, 2007 there were better conditions for parasitic growth in Belgium. Neither differences between the two sexes nor between the age groups were found. A possible reason could have been the time of year they were shot. Other factors that could influence the intensity of coccidian infections are: poor immunity, natural enemies, or various human influences.


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