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Mucosal surface lesions in young protein-deficient pigs infected with Ascaris suum (Nematoda)

Published online by Cambridge University Press:  06 April 2009

Jean Martin ,
D. W. T. Crompton ,
E. Carrera  and
M. C. Nesheim
Jean Martin
Affiliation:
The Molteno Institute, University of Cambridge, Downing Street, Cambridge CB2 3EE
D. W. T. Crompton
Affiliation:
The Molteno Institute, University of Cambridge, Downing Street, Cambridge CB2 3EE
E. Carrera
Affiliation:
The Molteno Institute, University of Cambridge, Downing Street, Cambridge CB2 3EE
M. C. Nesheim
Affiliation:
The Molteno Institute, University of Cambridge, Downing Street, Cambridge CB2 3EE
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Summary

The morphology of the mucosal surface of samples from the small intestine of young protein-deficient pigs was examined by scanning electron microscopy. Three pigs had been infected with Ascaris suum for at least 58 days while 1 had remained uninfected; all pigs were housed and maintained under the same conditions, at the same time. The tissue samples collected at post mortem examination from pigs which contained A. suum showed varying degrees of villous atrophy and fusion. In addition, unusual small craters and as yet unidentified objects were observed at the surfaces of the enterocytes of Ascaris-infected pigs. These changes in mucosal morphology were not seen in the tissue taken from the uninfected pig. The possible association between the mucosal lesions and lactose maldigestion in young, protein-deficient pigs infeceted with A. suum is discussed.

Type
Research Article
Information
Parasitology , Volume 88 , Issue 2 , April 1984 , pp. 333 - 340
Copyright
Copyright © Cambridge University Press 1984

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