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1 March 2006 Identification of New Morphological and Life-Cycle Stages of Cochlosoma anatis and Experimental Transmission Using Pseudocyst
Nicholas P. Evans, Robert D. Evans, Steve Fitz-Coy, F. William Pierson, John L. Robertson, David S. Lindsay
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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.

Nicholas P. Evans, Robert D. Evans, Steve Fitz-Coy, F. William Pierson, John L. Robertson, and David S. Lindsay "Identification of New Morphological and Life-Cycle Stages of Cochlosoma anatis and Experimental Transmission Using Pseudocyst," Avian Diseases 50(1), 22-27, (1 March 2006). https://doi.org/10.1637/7360-040405R.1
Received: 1 April 2005; Accepted: 1 September 2005; Published: 1 March 2006
KEYWORDS
Cochlosoma
longitudinal binary fission
poults
pseudocyst
trichomonads
trophozoite
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