Literaturdatenbank
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Hernandez-Divers, S. J. , The value of endoscopy in chelonian research and conservation. Paper presented at Turtle Survival Alliance 2007 Annual Meeting.
Added by: Admin (13 Dec 2008 22:23:41 UTC) |
| Resource type: Proceedings Article BibTeX citation key: HernandezDivers2007 View all bibliographic details  |
Categories: General Keywords: Gopherus, Gopherus polyphemus, Schildkröten = turtles + tortoises, Testudinidae, Untersuchungsmethoden = examination method, Veterinärmedizin = veterinary medicine Creators: Hernandez-Divers Collection: Turtle Survival Alliance 2007 Annual Meeting |
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| Abstract |
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Testudinidae Gopherus polyphemus The development of minimally-invasive diagnostic and endosurgical techniques in chelonians has been fueled by the needs for short procedure times, rapid recovery, and reduced morbidity and mortality.1,2 Diagnostic endoscopy typically involves general or local anesthesia and insertion of a single sheathed telescope (typically 4 mm in diameter). Constant insufflation of the coelom with carbon dioxide or air is typically not required, and endoscopic instruments can be inserted down the operating channel to manipulate or biopsy tissues. Diagnostic endoscopy procedures may include; 1. Examination of the upper and lower gastro-intestinal tract including sampling of ingesta, parasites, and mucosal tissue biopsies. 2. Examination of the upper and lower respiratory systems including sampling of parasites, granulomas, and tissue biopsies. 3. Examination of the coelom and internal viscera, including the heart, liver, pancreas, spleen, intestines, kidney, bladder, and reproductive organs, and biopsy of most structures for histopathology, microbiology, and toxicology. Recent advances in field anesthesia techniques and the portability of endoscopy equipment has enabled these techniques to be utilized in several free-ranging chelonian projects. To date, researchers at the University of Georgia have performed reproductive evaluations including gonad measurements in Gopher tortoises using both endoscopy and ultrasonography; and evaluated a single-entry liver and renal biopsy technique in freshwater turtles. Surgical endoscopy typically involves general anesthesia and insertion one or more instruments. While such procedures are more complex and probably of less immediate value for those working with free-ranging chelonians, endoscope-assisted ovariectomy has been described and is currently being considered for sterilization of non-releasable desert tortoises.3 Endoscopy training programs for licensed biologists, zoologists and veterinarians are available through the University of Georgia (www.georgiacenter.uga.edu/conferences/2007/Dec/01/avian.phtml).
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