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Related to oocyst: cryptosporidium


A thick-walled structure that contains the zygote of an apicomplexan parasite and releases the infective sporozoites.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Zoology) an encysted zygote of sporozoan protozoans that undergoes sporogony to produce infective sporozoites
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈoʊ əˌsɪst)

the encysted zygotic stage in the life cycle of some sporozoans.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
A single Cryptosporidium oocyst is sufficient to cause infection in any susceptible host (Ryan et al., 2014).
The life stage of Cyclospora that causes infection is called the oocyst. Oocysts can spread when they are passed in the bowel movements of infected people and end up on hands, food, water or other objects.
Detection of Toxoplasma gondii-like oocysts in cat faeces and estimates of the environmental oocyst burden.
However, total oocyst counts in the litter need to be performed to evaluate contribution of the litter in Eimeria persistency within a flock, but that was not performed in this study.
Oocyst counts were pooled for each subtreatment group and mean counts determined after every two days up to day 20 posttreatment.
The methodology included microscopic examination, sporulation, oocyst measurements, and photography.
Cryptosporidium is a coccidian parasite which resides in the microvillus of the lumen and multiply in the microvillus producing Oocyst, leading to malfunction of the lumen.
Cryptosporidium oocyst has become a concern for the water industry as it is infectious, robust in the environment, and resistant to disinfectants (chlorine and chloramines) and can compromise filter bed of the water filtration system [4, 5].
After challenge with Eimeria, the groups A and D also showed maximum weight gains with low oocyst counts and maximum percent protection against lesions in both caecum and intestine.
Live oocyst vaccines currently used however have limited utility in the broiler industry in view of reduced weight gain and recycling of oocysts in the litter resulting in coccidiosis outbreaks (VERMEULEN et al.
Results of the study demonstrated equipotent efficacy of pure berberine in comparison to that of standard drug amprolium on the basis of reduction in coccidian oocyst output, body weight gain of chicken and feed conversion ratio.