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The fine structure of the alimentary tract of third-stage larvae of Haemonchus placei and Trichostrongylus colubriformis

Published online by Cambridge University Press:  06 April 2009

Kenneth Smith  and
Eric Harness
Kenneth Smith
Affiliation:
Agricultural Research Council, Institute for Research on Animal Diseases, Compton, Nr Newbury, Berks.
Eric Harness
Affiliation:
Agricultural Research Council, Institute for Research on Animal Diseases, Compton, Nr Newbury, Berks.
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Extract

A comparative study was made of defined regions of the alimentary tract of third-stage larvae of T. colubriformis and H. placei. The general organization of the tract was similar in both nematodes. The mouth, buccal cavity and oesophagus were lined with cuticle. Muscle cells, apical cells and gland cells were present in the oesophagus. In both species the gland cells contained secretory granules of similar morphology. The lumen of the intestine was ill-defined and apparently nonfunctional. Dense bodies observed in the intestinal cells differed in the two species.

We are grateful to Dr D. W. Brocklesby for his help and advice. We would also like to thank Dr D. L. Lee and Dr W. G. MacMillan for helpful discussions.

Type
Research Article
Information
Parasitology , Volume 62 , Issue 3 , June 1971 , pp. 355 - 360
Copyright
Copyright © Cambridge University Press 1971

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References

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