Effect of chromium compounds on sporulation of Eimeria piriformis oocysts.
Ming-Hsien Li,Hong-Kean Ooi +1 more
TLDR
In this paper, freshly defecated unsporulated oocysts of Eimeria piriformis from rabbit were treated with various concentrations (1, 2.5, 5, and 10%) of chromium compounds, potassium dichromate, potassium chromate, chromium oxide and chromium nitrate, to examine their effect on sporulation.Abstract:
Freshly defecated unsporulated oocysts of Eimeria piriformis from rabbit were treated with various concentrations (1%, 2.5%, 5%, and 10%) of chromium compounds, potassium dichromate, potassium chromate, chromium oxide and chromium nitrate, to examine their effect on sporulation. The sporulation time of oocysts treated with 1 to 10% K(2)Cr(2)O(7) was 28 h. However, much longer sporulation times of about 60 h were required for oocysts treated with 2.5% CrO(3) and Cr(NO(3))(3). Moreover, for oocysts treated with distilled water, 1% K(2)CrO(4) and 10% K(2)CrO(4), the sporulation times required were 216, 156 and 96 h, respectively. Thus, potassium dichromate was found to have higher catalytic activity for the sporulation of E. piriformis oocysts than other chromium compounds.read more
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Fecal occult blood manifestation of intestinal Eimeria spp. infection in rabbit.
Ming-Hsien Li,Hong-Kean Ooi +1 more
TL;DR: E. perforans was observed to cause intestinal hemorrhage during the period of massive oocyst shedding, which was not seen in the other Eimeria species that the authors had examined.
Journal Article
Prevalence, infectivity and oocyst sporulation time of rabbit-coccidia in Taiwan.
TL;DR: It is demonstrated that these rabbit-infecting Eimeria species have high biopotential in that the ingestion of a single sporulated oocyst could successfully produce patent infection in a rabbit and also possess high host specificity in that they could not infect mice, golden hamsters, Mongolian gerbils, rats, and guinea pigs.
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Eimeria species in wild rabbits (Oryctolagus cuniculus) in Fars province, Iran.
TL;DR: Analysis of wild rabbits from Fars province, south of Iran found immunity induced by long term exposure to low doses of oocysts shedded by the carrier animals probably have pivotal role in impairing parasitic developmental cycles and preventing acute coccidiosis.
Journal ArticleDOI
Parasitological surveillance in a rat (Rattus norvegicus) colony in São Paulo Zoo animal house
Carolina Romeiro Fernandes Chagas,Irys Hany Lima Gonzalez,Samantha Mesquita Favoretto,Patrícia Locosque Ramos +3 more
TL;DR: The aim of this study was to identify intestinal parasites of Rattus norvegicus offered as food to captive animals from São Paulo Zoo, and demonstrate the importance of sanitary hurdling, disease control and biosecurity.
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In Vitro Assessment of Anticoccidials: Methods and Molecules.
TL;DR: In this article, the main in vitro protocols for Eimeria are assessed focusing on the exogenous phase with oocyst viability and sporulation assays, and on the endogenous phase, with invasion and developmental assays in cell cultures and in ovo.
References
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