![]() ![]() Two of the most significant trematodes in temperate regions are rumen fluke (RF) and liver fluke, Fasciola hepatica. ![]() Trematodes are important livestock parasites with a worldwide distribution that are responsible for serious economic losses and compromised animal welfare. All rumen fluke collected at necropsy were identified by PCR and sequencing as Calicophoron daubneyi. Examination of animals with adult rumen fluke provided no evidence of any consistent associations with acute or chronic inflammatory changes in the duodenum. There was no significant difference in mean ruminal papillar density and length in animals with and without adult rumen fluke and no significant gross pathology was observed in the rumen or reticulum. The presence of rumen fluke in post-mortem cases was 26.9% ( n = 18/67), the majority (66.7%, n = 12/18) with burdens of less than 100 adult rumen flukes. A prospective post-mortem examination study was also carried out to determine the presence of rumen and liver fluke in cattle and sheep, to quantify adult rumen fluke burdens and to assess any pathological changes in the reticulorumen and proximal duodenum associated with infection. This analysis showed evidence of adult rumen fluke in 6.6% of samples submitted, with a substantial and significant increase in positive diagnoses from 2016, following which positive rumen fluke diagnoses equaled or slightly outnumbered those of liver fluke. The presence of rumen fluke in Scotland had not previously been quantified, so the purpose of this study was to use historical coprological data collected between 20 at the School of Veterinary Medicine in Glasgow to evaluate the frequency of rumen fluke infection and to compare this with the presence of liver fluke. ![]() Morbidity and mortality can result from the development of juvenile flukes in the duodenum, however, evidence for significant impacts of adult fluke in the rumen of the final host is equivocal. Rumen fluke (RF) are trematode parasites that have increased in prevalence within European ruminant livestock since the 1990s. ![]()
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