Document Detail


Eimeria dispersa, E. adenoeides, and E. meleagrimitis: intestinal mucosal disruption in turkeys as seen with scanning electron microscopy.
MedLine Citation:
PMID:  448609     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Tissues from the digestive tract of turkeys infected with Eimeria dispersa, E. adenoeides, or E. meleagrimitis were compared with tissues from uninfected controls as seen with light microscopy (LM) and scanning electron microscopy (SEM). Six regions were examined--duodenum, jejunum, ileum, cecal neck, cecal pouch, and large intestine. Although LM showed large numbers of E. dispersa in the epithelial cells, SEM usually showed little mucosal disruption. Occasionally the surface of duodenum and jejunum, as seen with SEM, was convoluted and disrupted. In one bird, some parasite-induced damage was found with either LM or SEM in the duodenum and jejunum of turkeys given E. adenoeides oocysts. Although LM showed parasites in the rest of the digestive tract of all E. adenoeides infected birds, SEM showed only a localized sloughing of the mucosa in the cecal pouch. The most extensive damage to the villar surface was caused by E. meleagrimitis. Infections often disrupted the villar tips, especially in the small intestine and cecal neck. Localized areas of pitting were often found on individual villi. All 3 species produced oocyst extrusion sites, especially in the ileum and the ceca.
Authors:
P A Madden; M D Ruff
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of parasitology     Volume:  65     ISSN:  0022-3395     ISO Abbreviation:  J. Parasitol.     Publication Date:  1979 Apr 
Date Detail:
Created Date:  1979-09-01     Completed Date:  1979-09-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7803124     Medline TA:  J Parasitol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  234-42     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Cecum / pathology
Coccidiosis / pathology,  veterinary*
Eimeria
Intestinal Mucosa / pathology*
Intestine, Large / pathology
Intestine, Small / pathology
Microscopy, Electron, Scanning
Poultry Diseases / pathology*
Turkeys*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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