Although all 3 zebra species are in the same genus as that of domestic horses (Equus caballus), we are not aware of any published studies of cardiac structure and function of zebras. As a result of their endangered status, a herd of Grevy's zebras (Equus grevyi) have been maintained at the White Oak Conservation Center in Yulee, Fla. Annual examinations and the provision of veterinary care yielded an opportunity to noninvasively evaluate the hearts of those zebras. The objectives of the study reported here were to characterize ECG and echocardiographic findings in healthy Grevy's zebras with the intent to provide reference values for use in the evaluation of zebras suspected of having cardiac disease.
Interventricular septal thickness during diastole
Left ventricular internal diameter during diastole
Left ventricular internal diameter during systole
Left ventricular free-wall thickness during diastole
Etorphine HCl, 10 mg/mL, Wildlife Pharmaceuticals, Fort Collins, Colo.
Dormosedan, 10 mg/mL, Pfizer Animal Health, Exton, Pa.
Acepromazine maleate, 10 mg/mL, Vetus Animal Heath, Rockville Centre, NY.
Vet Biolog, Micromedical Industries Ltd, Labrador, Queensland, Australia.
Vivid I, GE Medical Systems, Chicago, Ill.
Medcalc software, version 7.5, Mariakerke, Belgium.
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