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Experimental infection of the cockroach Periplaneta americana with Toxocara canis and the establishment of patent infections in pups

Published online by Cambridge University Press:  01 June 2008

N.K. Sasmal ,
T.K. Pahari  and
R. Laha
N.K. Sasmal
Affiliation:
Department of Parasitology, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K.B. Sarani, Kolkata 700037, West Bengal, India
T.K. Pahari
Affiliation:
Directorate of Animal Resource Development, Government of West Bengal, India
R. Laha*
Affiliation:
Indian Veterinary Research Institute, Eastern Regional Station, 37, Belgachia Road, Kolkata700037, India
*
*E-mail: lahar31@rediffmail.com
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Abstract

The possible role of the cockroach Periplaneta americana in the transmission of Toxocara canis eggs and larvae via faeces and tissue migration was studied. Cockroaches fed with 3 × 105 and 5 × 105 embryonated eggs were found to harbour viable eggs and larvae from days 1 to 5 post-infection (DPI). At necropsy on 5 DPI, eggs and larvae were also recovered from the rectal contents but not from the tissues of cockroaches. In addition patent infections were established in pups fed on infected faeces of cockroaches, with eggs first appearing in the faeces of pups at 38 DPI. Adult worms of T. canis were also recovered at necropsy. Therefore the importance of cockroaches as good mechanical disseminators of ascarid eggs, especially T. canis, is discussed.

Type
Research Papers
Information
Journal of Helminthology , Volume 82 , Issue 2 , June 2008 , pp. 97 - 100
Copyright
Copyright © Cambridge University Press 2008

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