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[[Image:Coccidia.jpg|thumb|right|150px|Coccidia - Joel Mills]]

[[Image:Coccidia_logo.jpg|thumb|right|150px|''Coccidia'' <br> Joel Mills, WikiMedia Commons]]

Coccidia belong to the phylum Apicomplexa and are [[:Category:Protozoa|protozoan parasites]] of mammals, birds and reptiles. Coccidia have three major stages to their life cycle: Sporogony, Schizogony, Gametogony. The first two stages are asexual, with sexual reproduction occurring in the third stage. The following is a general life cycle though there is some variation in the various suborders.

Coccidia belong to the phylum Apicomplexa and are [[:Category:Protozoa|protozoan parasites]] of mammals, birds and reptiles. Coccidia have three major stages to their life cycle: Sporogony, Schizogony, Gametogony. The first two stages are asexual, with sexual reproduction occurring in the third stage. The following is a general life cycle though there is some variation in the various suborders.

The released merozoites then infect new intestinal cells and differentiate into '''gametocytes'''. The females, known as '''macrogametocytes''' are large single nuclear cells, they increase in size to fill the host cell. Merozoites that develop into the male gametocyte, or '''microgametocyte''', divide into a large number of small cells with flagella. The motile microgametocytes are released from the parasitised cell as it ruptures. A single microgametocyte will penetrate a macrogametocyte and the nuclei of both cells will fuse. A wall then develops around the new '''oocyst''' which then remains in this stage of development until released from the body in the hosts faeces. Sporogony will then begin as described above.  

The released merozoites then infect new intestinal cells and differentiate into '''gametocytes'''. The females, known as '''macrogametocytes''' are large single nuclear cells, they increase in size to fill the host cell. Merozoites that develop into the male gametocyte, or '''microgametocyte''', divide into a large number of small cells with flagella. The motile microgametocytes are released from the parasitised cell as it ruptures. A single microgametocyte will penetrate a macrogametocyte and the nuclei of both cells will fuse. A wall then develops around the new '''oocyst''' which then remains in this stage of development until released from the body in the hosts faeces. Sporogony will then begin as described above.  

[[Category:Coccidia]]

[[Category:To_Do_-_NickJ]]

|literature search  = [http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Coccidia+&occuring1=title&rowId=2&options2=AND&q2=%22Life+Cycle%22&occuring2=title&rowId=3&options3=AND&q3=&occuring3=freetext&x=55&y=18&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all Coccidial Life Cycle publications]

 

 

 

 

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