| Effects of natural winter pasture and commercial pellet on the ultrastructure of small intestinal epithelium in reindeer. | |
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MedLine Citation:
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PMID: 15778852 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Segments of small intestine (duodenum, jejunum and ileum) from slaughtered reindeer (Rangifer tarandus tarandus) grazing natural winter pastures (n=3) and reindeer fed commercially available pellets (RF-80) in winter (n=5) were collected and immediately fixed in McDowell's fixative. Transmission electron microscopy was employed to investigate the ultrastructural features of the epithelium and lamina propria along the small intestine and to relate these to the different diets. Major differences in ultrastructural features were observed between the small intestinal enterocytes of reindeer fed the two diets. Enterocytes in reindeer fed the natural diet displayed a normal appearance with a dense cytoplasm and distinct microvilli. In contrast, reindeer fed the commercial diet showed damaged enterocytes amongst the normal cells. Abnormal changes included disintegration and loss of microvilli, cytoplasmic swelling, loss of membrane integrity and increases in the width of intercellular spaces, especially in the jejunum. |
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Authors:
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E Ringø; S D Mathiesen; P V Storeheier; T M Mayhew; R Myklebust |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2005-03-19 |
Journal Detail:
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Title: Cell and tissue research Volume: 320 ISSN: 0302-766X ISO Abbreviation: Cell Tissue Res. Publication Date: 2005 May |
Date Detail:
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Created Date: 2005-04-27 Completed Date: 2005-12-23 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0417625 Medline TA: Cell Tissue Res Country: Germany |
Other Details:
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Languages: eng Pagination: 355-9 Citation Subset: IM |
Affiliation:
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Section of Arctic Veterinary Medicine, Department of Food Safety and Infection Biology, Norwegian School of Veterinary Science, Tromsø. einar.ringo@veths.no |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Diet* Duodenum / ultrastructure Enterocytes / ultrastructure Ileum / ultrastructure Intestinal Mucosa / ultrastructure* Intestine, Small / ultrastructure* Jejunum / ultrastructure Lichens Male Reindeer / physiology* Seasons* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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