Eimeria spp.
Tarmcoccidier (Oocysts of intestinal coccidia) |
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Intestinal coccidia of ruminants | Phylum: Apicomplexa | Class: Coccidea | Family: Eimeriidae |
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Unsporulated oocysts in faeces (length: ca 15-30 µm). Shape: spherical, ovoid or ellipsoidal depending on species. The cyst wall is usually clear and transparent and always composed of two distinct layers (double outline) with a micropyle which in some species is covered by a cap (polar cap). |
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Sporulated oocysts. Will hold four sporocysts containing two sporozoites each (Eimeria spp.) or two sporocysts containing four sporozoites each (Isopspora spp.).
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Hosts: : Cattle, sheep, goats, horses. |
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Location: Small intestine, colon. |
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