Reference Base Black rhinoceros (Diceros bicornis) erythrocyte stability |
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Location: |
World |
Subject: |
Diseases |
Species: |
Black Rhino |
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Hemolytic anemia in black rhinoceroses has been noted with alarming frequency in recent years. In several instances, death ensued, and an etiology of leptospirosis, babesiosis and trypanosomiasis has been proposed. In one instance, hemolytic anemia developed in a black rhinoceros being treated for tuberculosis. In most, the etiology was unclear.
Clinical signs generally precede death by 2 hr to 2 days. Erythrocyte PCV may range from 4-15 %, and erythrocyte and hemoglobin concentrations are correspondingly low. Hemosiderin may be deposited in the gut, lungs, and liver, and there may be evidence of centrilobular hepatic necrosis. Studies of erythrocyte osmotic fragility, hemoglobin electrophoresis, erythrocyte enzymes, glycolytic intermediates and several other measures have not distinguished between healthy and affected animals.
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