Identification of new morphological and life-cycle stages of Cochlosoma anatis and experimental transmission using pseudocyst

Avian Diseases
Nicholas P EvansD S Lindsay

Abstract

Cochlosoma anatis is a flagellated intestinal parasite that infects a variety of avian species. C. anatis infections have been associated with decreased weight gain and increased morbidity and mortality. Conditions favoring the growth of this organism in birds are current pathogenic intestinal infections and/or young age. There is little data describing the life cycle of this parasite. In this study, electron microscopy images are presented that document longitudinal binary fission of the trophozoite stage and outline the events of pseudocyst formation, which includes a rounding stage. Evidence provided here indicates that the pseudocyst stage may be a mechanism for transmission of this organism. The observations reported here provide additional evidence of homology between Cochlosoma and members of the trichomonad order.

References

Jul 1, 1992·The Journal of protozoology·M BenchimolW De Souza
May 1, 1973·The Journal of protozoology·C F MatternW A Daniel
Nov 1, 1980·The Journal of protozoology·C F Mattern, W A Daniel
Aug 1, 1997·Australian Veterinary Journal·L J Filippich, P J O'Donoghue
Feb 9, 1999·Veterinary Parasitology·D S LindsayF W Pierson
Sep 26, 2000·Parasitology Research·B L GrangerW De Souza

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Methods Mentioned

BETA
scrapings
light microscopy
environmental stress

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