Information AboutHistomonas Meleagridis |
| CATEGORIES ABOUT HISTOMONAS MELEAGRIDIS | |
| metamonads | |
| parasites | |
| poultry diseases | |
| veterinary protozoology | |
''Histomonas meleagridis'' is species of Parasitic Protozoa n that infects Chicken s, Turkey s, Peafowl , Quail and Pheasant s, causing Blackhead Disease , infectious Enterohepatitis , or Histomoniasis . ''H. meleagridis'' can infect many birds but it is most deadly in turkeys. ETIOLOGY ''H. meleagridis'' is most often transmitted in embryonated eggs of '' Heterakis Gallinarum '', a Cecal Nematode , but sometimes it is transmitted directly by contact with infected birds. '' H. gallinarum'' Larva e are found inside three species of Earthworms , and it is through eating the earthworms that most birds get infected. The earthworm eats infected nematode eggs, which can remain dormant in the soil for years. After a few days of ingestion, ''Histomonads'' are released from the ''Heterakis'' nematode larvae in the Ceca , and begin to replicate rapidly in the cecal tissues. They migrate to the Submucosa and Muscularis mucosae and cause severe Necrosis . The parasites then move to the Liver , through the Vascular System or through the Peritoneal Cavity . There they cause more nercotic lesions. Histomonads interact with other gut organisms, such as Bacteria and Coccidia , and depend on these for full Virulence . EXTERNAL LINKS
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