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Related Experiment Videos

Glucosuria in captive okapi (Okapia johnstoni).

Gregory J Fleming1, Scott B Citino, Ann Petric

  • 1White Oak Conservation Center, 581705 White Oak Road, Yulee, Florida 32097, USA.

Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians
|February 24, 2007
PubMed
Summary

Glucosuria, or glucose in urine, is common in captive okapi in the United States. This condition was not observed in okapi within their native habitat, suggesting a link to captivity.

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Area of Science:

  • Veterinary Medicine
  • Zoology
  • Comparative Physiology

Background:

  • Captive okapi in the United States exhibit a high prevalence of glucosuria.
  • Previous studies have indicated potential health concerns in captive okapi populations.

Purpose of the Study:

  • To confirm and investigate the prevalence of glucosuria in captive okapi.
  • To compare glucosuria levels in captive okapi with those in their native habitat.
  • To explore potential physiological markers associated with glucosuria in okapi.

Main Methods:

  • Urine dipstick analysis was used to screen captive okapi for glucosuria.
  • Quantitative analysis confirmed urine glucose concentrations in a subset of okapi.
  • Okapi in their native range served as a control group for comparison.

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  • Serum fructosamine and insulin levels were measured in affected and unaffected okapi.

    • Main Results:

    • Eighteen out of 38 captive okapi in the US tested positive for glucosuria.
    • Quantitative analysis corroborated dipstick findings, identifying glucose in 70% of tested samples.
    • Okapi in their native habitat showed no signs of glucosuria.
    • Serum fructosamine and insulin levels were within normal ranges for ruminants, regardless of glucosuria status.

    Conclusions:

    • Glucosuria is a genuine physiological finding in many apparently healthy captive okapi in the United States.
    • The prevalence of glucosuria in captive okapi warrants further investigation into its causes and implications.
    • Habitat and environmental factors may play a role in the manifestation of glucosuria in okapi.