Ei·me·ria ī-'mir-ē-ə n a genus of coccidian protozoans that invade the visceral epithelia and esp. the intestinal wall of many vertebrates and some invertebrates and that include serious pathogens
ei·me·ri·an -ē-ən adj or n
Ei·mer 'ī-mər Theodor Gustav Heinrich (1843-1898)
German zoologist. Eimer is known largely for his opposition to the Darwinian theory of natural selection. He held that variation in organisms occurred not by chance but according to the mechanism of orthogenesis.

* * *

Ei·me·ria (i-mērґe-ə) [Gustav Heinrich Theodor Eimer, German zoologist, 1843–1898] a genus of homoxenous coccidian protozoa (suborder Eimeriina, order Eucoccidiida) found principally as parasites of the gastrointestinal tract of birds and herbivorous mammals. The organisms have four spores in each oocyst and two sporozoites in each spore, with oocysts being passed in the feces. Many species are of economic importance. Pathogenic species found in domestic animals include E. bovis, E. ellipsoidalis, and E. zuernii in cattle; E. arloingi A (E. ovina), E. arloingi B (E. weybridgensis), E. ahsata, E. crandallis, E. gilruthi, and E. ovinoidalis in sheep; E. debliecki, E. scabra, and E. perminuta in pigs; E. leukarti in horses and donkeys; E. arloingi, E. caprina, E. faurei, and E. ninakohlyakimovae in goats; E. magna, E. stieda, E. sciurorum, and E. perforans in rabbits; and E. acervulina, E. maxima, E. meleagridis, E. necatrix, and E. tenella in poultry. See also coccidiosis.

Medical dictionary. 2011.

Look at other dictionaries:

  • Eimeria — Eimeria …   Wikipédia en Français

  • Eimeria — Saltar a navegación, búsqueda Oocitos de Eimeria maxima Género de coccidio parásito de multitud de aves y mamíferos domésticos. Existen cientos de especies. En animales jóvenes hacinados puede producir cuadros diarreicos graves y una mortalidad… …   Wikipedia Español

  • Eimerĭa — Eimerĭa, Gattung der Sporozoen, s. Protozoen …   Meyers Großes Konversations-Lexikon

  • eimeria — ● eimeria nom féminin (de T. Eimer, nom propre) Coccidie parasite d invertébrés et de nombreux vertébrés, dont diverses espèces sont responsables de coccidioses chez les volailles, le lapin, les bovins …   Encyclopédie Universelle

  • Eimeria —   [nach dem Schweizer Zoologen Theodor Eimer, * 1843, ✝ 1898], Gattung der Kokzidien …   Universal-Lexikon

  • Eimeria — Taxobox color = khaki image width = 210px image caption = Eimeria Maxima oocysts name = Eimeria regnum = Protista phylum = Apicomplexa classis = Conoidasida ordo = Eucoccidiorida familia = Eimeriidae genus = Eimeria genus authority = Schneider,… …   Wikipedia

  • Eimeria — Eimeria …   Wikipédia en Français

  • Eimeria — ▪ biology       genus of parasitic protozoans of the spore producing phylum Apicomplexa (previously Sporozoa). Eimeria, which causes coccidiosis in livestock and wild animals, infects mainly the cells of the digestive tract, although it also… …   Universalium

  • Eimeria — Coccidian protozoan. All coccidians are intracellular parasites of various vertebrates and invertebrates. Eimeria tenella infects chick intestinal epithelial cells and is of veterinary importance. The trophozoites invade host cells, proliferate… …   Dictionary of molecular biology

  • Eimeria — Género de coccidio parásito de multitud de aves y mamíferos domésticos. Existen cientos de especies. En animales jóvenes hacinados puede producir cuadros diarreicos severos y una mortalidad elevada en ausencia de tratamientos con fármacos… …   Enciclopedia Universal

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.