Eimeria is a genus of apicomplexan parasites that includes various species capable of causing .. mice (M. musculus) Eimeria weybridgensis – sheep (O. aries) Eimeria wobati – southern hairy-nosed wombat (L. latifrons) Eimeria zuernii – cattle (B. taurus). Eimeria zuernii is a species of the parasite Eimeria that causes diarrheic disease known as eimeriosis in cattle (Bos taurus), and mainly affects younger animals. Coccidiosis is usually an acute invasion and destruction of intestinal mucosa by protozoa of the genera Eimeria or Isospora. Clinical signs include diarrhea.
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Eimeria burdai Eimeria callospermophili Eimeria californicenis Eimeria cameli Eimeria canadensis Eimeria canis Eimeria caprina Eimeria caprovina Eimeria carinii Eimeria carpelli Eimeria catostomi Eimeria catronensis Eimeria caviae Eimeria cerdonis Eimeria citelli Eimeria chelydrae Eimeria christenseni Eimeria clarkei Eimeria clethrionomyis Eimeria coecicola Eimeria colchici Eimeria columbae Eimeria columbarum Eimeria contorta Eimeria coturnicus Eimeria couesii Eimeria crandallis Eimeria crassa Eimeria curvata Eimeria cylindrica Eimeria cynomysis Eimeria cyprini Eimeria dammahensis Eimeria danailovi Eimeria danielle Eimeria debliecki Eimeria deserticola Eimeria dispersa Eimeria dolichotis Eimeria dromedarii Eimeria duszynskii Eimeria ellipsoidalis Eimeria elongata Eimeria etheostomae Eimeria eutamiae Eimeria exigua Eimeria falciformis Eimeria fanthami.
Resolution of these lesions takes place in approximately ten days in calves which survivie. Oocysts excreted eimera host faeces contaminate the external environment, but they must undergo zuerni sporulation sporozoite formation before they become infective. Others infect poultry E. Certain species, however, are highly pathogenic and cause catarrhalic or haemorrhagic enteritis by severe erosion of the mucosal membranes through cell lysis resulting in profuse watery-to-bloody diarrhoea.
This genus contains a single species, Crystallospora cristalloides. They begin as small basophilic uzernii cells mother meronts located intracellularly within host cells. A wide range of drugs are available, including those with eimeeria reversible suppressive activity or coccidio-cidal irreversible lethal activity. Taxonomic zuernij under review cf. There has been considerable success with control through immunoprophylaxis using attenuated or precocious strains of parasites, particularly in the poultry industry.
Coccidiosis typically results in diarrhoeaweight loss and dehydration. Immunity to the parasite varies depending on parasite and host species, as well as the site of invasion.
Eimeria abramovi Eimeria acervulina Eimeria adenoides Eimeria ahsata Eimeria airculensis Eimeria alabamensis Zueenii albigulae Eimeria alijevi Eimeria alpacae Eimeria amphisbaeniarum Eimeria anatis Eimeria anguillae Eimeria ankarensis Eimeria anseris Eimeria arizonensis Eimeria arabukosokokensis Eimeria arnyi Eimeria arundeli Eimeria anseris Eimeria arkhari Eimeria arloingi Eimeria aspheronica Eimeria auburnensis Eimeria augusta Eimeria zuermii Eimeria aythyae Eimeria azerbaidschanica Eimeria bactriani Eimeria bakuensis Eimeria bareillyi Eimeria baueri Eimeria battakhi Eimeria beckeri Eimeria beecheyi Eimeria eimeia Eimeria brinkmanni Eimeria bombaynsis Eimeria bonasae Eimeria boschadis Eimeria bovis Eimeria brantae Eimeria brasiliensis Eimeria brevoortiana Eimeria brinkmanni Eimeria brunetti Eimeria bucephalae Eimeria bufomarini Eimeria bukidnonensis.
Regrettably, there are mounting problems being encountered with drug resistance amongst many coccidian species, especially that against synthetic drugs which tends to persist within parasite populations. Images in this article Fig.
The classification of eimeriid coccidian was largely based on morphological and life cycle details. Am J Vet Res.
Eimeria zuernii
Three species are in this genus. This article has been cited by other articles in PMC. Mature schizonts appear as membrane-bound clusters of small basophilic bodies similar to bunches of grapes. Views Read Edit View history. The gross lesions and the development and resolution of the microscopic lesions of the large intestine are described in detail.
Chromeraceae Chromera velia Vitrellaceae Vitrella brassicaformis. Eimeriidae These protozoa are known as the enteric coccidia; monoxenous one-host parasites in the digestive tracts of herbivores eomeria carnivores causing diarrhoeal disease known as coccidiosis. Support Center Support Center. This new genus retains the majority of the species. Researchers have recently used a range of molecular techniques to characterize genetic variation between and within parasite species, but few techniques are suitable for routine diagnostic use.
Researchers are now attempting to develop recombinant subcellular vaccines. Eimeria Schneider These cause the epithelial cells to burst, which causes significant damage to the eimeriia epithelial layer, resulting in the release of blood, fluid, and electrolytes into the intestine.
After the oocyst hatch in the gut of the animal it releases 8 zoites that undergo two asexual cycles schizogony. Associated Data Supplementary Materials.
Eimeria zuernii – Wikipedia
The disease is also commonly referred to as coccidiosis. Most coccidial infections stimulate the development of strong protective immune responses, albeit transient unless premunitive short-lived unless parasites persist. Dinokaryota With a theca: The severity of the disease is directly dependent on the number of infective Eimeria oocysts that are ingested. Eimeria is a genus of apicomplexan parasites that includes various species capable of causing the disease coccidiosis in animals such as cattlepoultryand smaller ruminants including sheep and goats.
A combination of these zuernji may result in poor growth and death of the animal, particularly amongst young.