liver fluke

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liver fluke:

see flukefluke,
parasitic flatworm of the trematoda class, related to the tapeworm. Instead of the cilia, external sense organs, and epidermis of the free-living flatworms, adult flukes have sucking disks with which they cling to their hosts and an external cuticle that resists digestion
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Liver Fluke

 

(Fasciola hepatica), a parasitic worm of the class Trematoda. The leaf-shaped body has a length of 2–5 cm. At the anterior end are the oral and ventral suckers. The liver fluke infests the liver, bile ducts, and gallbladder usually of herbivorous mammals, and more rarely of humans. The ova develop in water; the larvae that hatch from these ova and the partheno-genetic generations develop in an intermediate host, which is usually a mollusk, for example, the small freshwater snails of the family Lymnaeidae. The larva—a cercaria—emerges from the mollusk, swims, and settles on aquatic and coastal plants, becoming encysted as it converts to an adolescaria. The larvae that are swallowed by the definitive host penetrate the liver, where they grow and mature, eventually causing the disease fascioliasis.

Liver flukes are controlled by draining swamps, where lym-naeids hatch, by exterminating lymnaeids, by rotating pastures, and by treating cattle with anthelmintic drugs.

REFERENCE

Shul’ts, R. S., and G. I. Dikov. Gel’minty i gel’mintozy sel’skokhoziaist-vennykh zhivotnykh. Alma-Ata, 1964.

I. E. BYKHOVSKAIA

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

liver fluke

[′liv·ər ‚flük]
(invertebrate zoology)
Any trematode, especially Clonorchis sinensis, that lodges in the biliary passages within the liver.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Prevalencia of Fasciola hepatica, Dicrocoelium and Linguatula denticulata in cattle livers condemned at pamiers Abattoir (Ariege, France).
Morphologic differential diagnoses included eggs of Capillaria hepatica (bipolar striated ova in liver), Dicrocoelium (slightly smaller operculated ova typically found in feces or bile), and the similar Eurytrema (thick-walled operculated ova in feces).
GIT parasites recovered in this study were Haemonchus contortus, Strongylis pappilosis, Trichostrongylus, Trichuris globulosa, Fasciola, Dicrocoelium and Monezia, which were also reported by Asif et al.