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| | BIOLOGY OF THE EIMERIIDAE |
 | | Members of this large, heterogeneous assemblage are united, not necessarily by their biology and/or life histories, but by the presence of a unique "apical complex," composed of polar rings, rhoptries, micronemes, often a conoid, and other subcellular organelles, but visualized only by use of an electron microscope. |
 | | Both mechanical (muscular contractions) and enzymatic digestive (trypsin, bile salts) processes of the upper gastrointestinal tract of the host make the sporocyst and oocyst walls more permeable; eventually, certain parts of each may be digested, or they may collapse or are broken, releasing their sporozoites (Fig. |
 | | Eimeria steidai undergoes develpment in epithelial cells of the bile duct and parenchymal cells of the liver of rabbits. |
| biology.unm.edu /biology/coccidia/eimeriabiol.html (1868 words) |
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