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The aim of the study, conducted in the years 2011–2013, was to determine the level of gastrointestinal parasites infection in New Zealand White rabbits, kept at the Experimental Station of the University of Agriculture in Krakow. The study showed rabbits protozoan infection with the genus Eimeria, belonging – based on the sporulation method – to the following species: E. magna, E. media, E. perforans, E. stiedae and E. irresidua. The highest prevalence of infection, as well as the intensity of oocysts output (OPG – oocysts per gram of faeces), was noted for E. magna and E. media – respectively 31.4 % (19477.3 OPG), and 40.0 % (14256.07 OPG). The infection of rabbits with Eimeria spp. differed significantly between years. With regard to oocysts output, the level of infection was strongly connected with the age of rabbits, being higher in young animals. However, the range of infection was highest among adults. Among nematodes, Passalurus ambiguus pinworm was regularly found (prevalence reached 21.9%), other species – Trichuris leporis, and Graphidium strigosum were rarely noted. The overall infection with nematodes did not differ between years. Similarly, as in the case of Eimeria older individuals were more often infected by nematodes. We observed some trends in parasite oocysts/eggs output; the protozoan oocysts were recorded more often in faecal samples collected in the evenings, whereas the nematodes eggs occurred frequently in the mornings. This situation may be related to the phenomenon of coprophagy occurring in the mammals of Lagomorpha order. The results of the study indicate that especially coccidiosis constitute permanently throughout the years an important problem in the rabbitry examined.
The aim of the study was to analyse canine and feline infections with intestinal parasites basing on routine coproscopic tests. In total 5,809 results were analysed. Infections with Giardia intestinalis (6.93% – in dogs, 4.56% – in cats) and Toxocara spp. (4.07% – in dogs, 5.42% – in cats) were the most commonly noted. The majority of intestinal parasitic infections were identified more frequently in younger animals (under 1 year of age) as compared to older ones. This study showed the increase in the prevalence of coccidia (from 1% to 2.53%) and whipworms (from 2.6% to 3.07%) in dogs and a decrease in roundworm and hookworm related diseases in comparison to previous reports (years 1974-2002). The results showed changes in infection prevalence of both protozoan species (G. intestinalis and Cystoisospora spp.) both in dogs and cats, which suggests that climate conditions had an influence on the infection prevalence of the mentioned species. Moreover, the age of animals had an influence on the infection prevalence of intestinal parasites in dogs. However, there was no influence of both dogs’ and cats’ sex on the average infection prevalence of investigated parasites.
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