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The effect of host age on the course of infection of Raillietina cesticillus (Molin, 1858) in the fowl

Published online by Cambridge University Press:  06 April 2009

J. S. Gray
J. S. Gray
Affiliation:
Zoology Department, Royal Holloway College, Englefield Green, Surrey
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Extract

The effect of host age on the course of infection of Raillietina cesticillus in the chicken has been investigated. It was found that male hosts become resistant to the cestode with increasing age. This resistance manifests itself in an increased rate of destrobilization and consequent loss of scolices and in a decreased rate of growth of the worms. The cestodes are distributed over a greater length of intestine in old than in young birds.In female hosts age resistance develops more rapidly than in males until the birds are 84 days old and from this age onwards the manifestations of resistance decline.The possible factors responsible for age resistance to R. cesticillus are discussed.

Type
Research Article
Information
Parasitology , Volume 65 , Issue 2 , October 1972 , pp. 235 - 241
Copyright
Copyright © Cambridge University Press 1972

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