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