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A model of an utensil for coproscopic examinations of eggs heavier than water, e.g. eggs of Fasciola hepatica, was developed. It is built out of plexiglass 2 mm thick and is composed of a base with 40 fields, each 8x8 mm in size, a fixed casing 10 mm high and a shelter protecting it from cracking. One square takes in the range of vision of the magnifying glass at 6.3x2.5 magnification. Owing to the marked fields the utensil may be moved and the whole surface of a sediment is examined. Assessment of faeces sediment at a magnification of 6.3x2.5 makes it possible to shorten the time of examination and does not tire eyes. In order to assess the usefulness of the utensil for routine examinations a comparative evaluation of faeces containing 2 eggs of Fasciola hepatica was performed. The first egg in the sample was discovered with in 35 seconds and the time necessary to have a look at the whole sample was over one minute. The utensil can be used in laboratories for ovoscopy and larvoscopy and to assess the intensity of parasite invasion.
The purpose of the study was to evaluate intestinal parasite infections in riding horses from one stud farm and 5 riding clubs based on fecal egg counts, and in working horses on the basis of necropsy. The prevalence of strongyles was similar in stud farm and clubs (71.0% and 36.3%-87.1%, respectively), with higher egg counts in the farms (924) compared to the clubs (302-515). Larvae differentiation indicated a very low prevalence of large strongyles in the above horses. Parascaris equorum was not very prevalent in adult Arabian horses (0.5%), while 3.7-21% of horses in clubs were infected. Anoplocephala spp. was not very prevalent in Arab- -horse farms (6.7%) and in riding clubs (0-1.8%). 4 large strongyle, 14 small strongyle species and 5 other species of parasites were found in fourteen horses slaughtered for meat. The results indicated a high prevalence of large strongyles (S. vulgaris 64.3%, S. equinus 21.4%, and Triodontophorus spp. 14.3%-21.4%). The most prevalent cyathostome species were Coronocyclus coronatus (57.1%), Cylicocyclus nassatus (50.0%) and Cyathostomum catinatum (42.9%). Tapeworm and botfly infections were found in individual cases (7.1%). Horses in Arab farm and riding clubs were routinely de-wormed twice a year. It was noted that no anthelmintics had been used in the slaughtered horses. The results revealed that small strongyles (cyathostomes) are the most common intestinal parasites in horses despite regular anthelmintic treatment. In addition it seems important to take S. vulgaris infection into account when diagnosing abdominal pain, i.e. colic in un-wormed horses (working or kept in organic farming systems).
The objective of this study was to evaluate the level of tapeworm infections based on fecal sample examinations (McMaster method) in Arabian horses from two stud farms and post-mortem investigations in horses slaughtered for meat from small farms. The mean seasonal prevalence of tapeworm infection based on fecal sample examinations was 7.0% and 4.1% in the two stud farms. Tapeworm eggs were found more often in 2-year-old horses and mares than in yearlings, while they were not found in housed stallions. The prevalence of the infection was highest in April (9.3%) in one stud farm and in October (8.5%) in the second. Based on post-mortem examinations, A. perfoliata were found in 6 (7.2%) among 83 examined horses. A mean intensity of infection was 71.2 specimens, with a maximum 367 specimens found. Infection was revealed in 5.2% of mares and 12% of geldings and stallions as well as in one foal (4.5%). The average annual prevalence of tapeworm infections of horses from stud farms based on fecal sample examinations was small, from 4.1% to 7.0%. The dynamic of tapeworm infections of horses from stud farms was different during the pasture season. The mean prevalence of tapeworm infections of horses from individual breeding systems based on necropsy was similar: 7.2%.
In the years 2006-2009 coproscopic investigations of 1550 horses from central and eastern Poland have been conducted. Flotation, decantation and sedimentation-flotation methods were used. Parasitological autopsies of 950 horse livers were carried out. Fasciolosis was confirmed intra vitam in one live horse (0.07% examined) and in one horse post mortem (0.11%). Despite the fact that the invasion of Fasciola hepatica occurs in Poland sporadically, it should nevertheless be considered in the differential diagnosis of some diseases of horses.
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