Hepatogenous photosensitisation in Scottish sheep casued by Dicrocoelium dendriticum

N D Sargison, G J Baird, S Sotiraki, J S Gilleard, V Busin

Research output: Contribution to journalArticlepeer-review

Abstract

Dicrocoeliosis was identified as the probable predisposing cause of weight loss and hepatogenous photosensitisation affecting half of a group of 14month-old ewe lambs on a farm on the Inner Hebridean island of Coll. Oral dosing of the ewe lambs with 15mg/kg albendazole only achieved a 79.2% reduction in Dicrocoelium dendriticum egg count, 21day post treatment. Thus, this report of dicrocoeliosis differs from the disease that occurs elsewhere, both in the severity and nature of its clinical signs, and in the response of the parasite to anthelmintic drug treatment. These differences could indicate the existence of a genetically divergent D. dendriticum population, which may have evolved within the unique and isolated biotope afforded by the machair on the island of Coll. Better understanding of these factors is a prerequisite for effective and sustainable disease control.
Original languageEnglish
JournalVeterinary Parasitology
VolumeE-pub 9 May
Early online date9 May 2012
DOIs
Publication statusPublished - 2012

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