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Infectivity, growth and development of Echinostoma revolution (Trematoda) in the domestic chick

Published online by Cambridge University Press:  05 June 2009

Bernard Fried
Bernard Fried
Affiliation:
Department of Biology, Lafayette College, Easton, Pennsylvania 18042, USA
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Abstract

Infectivity, growth and development were studied in 23 one-day-old domestic chicks each fed 25 pre-selected metacercarial cysts of Echinostoma revolutum. All chicks were infected at necropsy one to 44 days postexposure with one to 18 flukes/chick. From the 575 cysts fed to chicks, 145 (25%) flukes were recovered from the ileum, caeca, rectum-cloaca and bursa of Fabricius. Length measurements on 113 uncurled flukes fixed in hot alcohol-formalin-acctic acid showed that worms grew slowly to 1.0 mm by day 3, rapidly to 6 mm by day 14, and less rapidly to 9 mm by day 36. Worms became ovigcrous by day 9. As worms aged in the chick, the body length increased relative to the width, the acetabulum shifted more antcriad and the size of the excretory bladder increased.

Type
Research Article
Information
Journal of Helminthology , Volume 58 , Issue 3 , September 1984 , pp. 241 - 244
Copyright
Copyright © Cambridge University Press 1984

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References

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