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Migration00:53

Migration

Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.

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Abomasal impaction in captive bongo (Tragelaphus eurycerus).

Zoltan S Gyimesi1, Roy B Burns, Mark Campbell

  • 1Louisville Zoological Garden, 1100 Trevilian Way, Louisville, Kentucky 40213, USA. zoli.gyimesi@louisvilleky.gov

Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians
|September 6, 2012
PubMed
Summary
This summary is machine-generated.

Fatal abomasal impaction in bongo (Tragelaphus eurycerus) is a serious condition, often linked to anesthesia. This study highlights the poor prognosis for affected animals, emphasizing the need for further research into causes and treatments.

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Area of Science:

  • Veterinary Medicine
  • Zoological Medicine
  • Animal Pathology

Background:

  • Abomasal impaction, frequently with omasal impaction, is a fatal gastrointestinal condition observed in bongo (Tragelaphus eurycerus).
  • This condition has been diagnosed in multiple zoological collections within the United States over a significant period.

Purpose of the Study:

  • To investigate the incidence, clinical signs, potential contributing factors, and outcomes of abomasal impaction in bongo.
  • To analyze the role of anesthesia and inheritable traits in the development of this condition.

Main Methods:

  • Retrospective case review of 11 bongo diagnosed with abomasal impaction between 1981 and 2009.
  • Analysis of clinical histories, including onset of signs post-anesthesia.
  • Pedigree analysis to assess the heritability of the condition.

Main Results:

  • Nine out of eleven cases occurred in young female bongo.
  • Clinical signs included anorexia, dehydration, and reduced fecal output, with 45% of cases showing onset after anesthesia.
  • Pedigree analysis suggested the condition is not strictly inheritable.

Conclusions:

  • Abomasal impaction in bongo has a poor to grave prognosis, even with attempted treatments like surgery or medication.
  • Anesthetic events may be a significant contributing factor.
  • The condition does not appear to be solely a result of genetic inheritance.