The epidemiology of Fasciola hepatica infections in sheep on a Lymnaea columella habitat in the Manawatu

Authors: Harris RE, Charleston WAG
Publication: New Zealand Veterinary Journal, Volume 24, Issue 1-2, pp 11-17, Jan 1967
Publisher: Taylor and Francis

Animal type: Livestock, Production animal, Ruminant, Sheep
Subject Terms: Alimentary system/gastroenterology, Epidemiology, Liver/hepatic disease, Trematode, Parasites - internal
Article class: Scientific Article
Abstract: Fasciola hepatica has become increasingly widespread in New Zealand in recent years following the colonization of large areas of the country by the exotic snail Lymnaea columella (Pullan, 1969; Pullan and Whitten, 1972; Pullan et al 1972). In October 1969, F. hepatica was found to be established in sheep and cattle on a farm 40 km from Palmerston North in an area previously regarded as free of fluke infection. A field experiment monitoring the seasonal pattern of uptake of F. hepatica by sheep on this farm was initiated in November 1969. At the same time studies on the snail populations were started. This paper describes patterns of infection observed up to June 1974 and some of the related observations on the snail populations.
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