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  • Title: Comparisons among selected neonatal biomedical parameters of four species of semi-free ranging Hippotragini: Addax (Addax nasomaculatus), scimitar-horned oryx (Oryx dammah), Arabian oryx (Oryx leucoryx), and sable antelope (Hippotragus niger).
    Author: Ferrell ST, Radcliffe RW, Marsh R, Thurman CB, Cartwright CM, De Maar TW, Blumer ES, Spevak E, Osofsky SA.
    Journal: Zoo Biol; 2001; 20(1):47-54. PubMed ID: 11319780.
    Abstract:
    Basic biomedical data from 164 neonates of four species of the tribe Hippotragini, addax (Addax nasomaculatus), scimitar-horned oryx (Oryx dammah), Arabian oryx (Oryx leucoryx), and sable antelope (Hippotragus niger), were compared at one zoological institution over a 9-year period. Measured biomedical parameters included body weight, temperature, pulse and respiratory rates, packed cell volume (PCV), total plasma protein, glucose, IgG assessment via zinc sulfate turbidity, and white blood cell count with differential. All species were maintained in a semi-free ranging setting with the same diet, available shelter, and opportunity for social interaction. Based on clinical and field observations, all neonates used in the study were believed to be at least 24 hr old, to have bonded with the dam, and to have no obvious physical abnormalities. Median body weights were similar only in the addax and Arabian oryx with sable antelope having the largest median body weight. No significant differences in rectal temperatures or pulse rates were found among species. Median respiratory rates were similar between certain groups. Arabian oryx and scimitar-horned oryx shared the highest packed cell volumes while the sable antelope had the lowest. Sable antelope had the highest median total plasma protein with no significant differences among the other species. Sable were also significantly lower in median blood glucose than the three other Hippotraginae. Zinc sulfate turbidities in all species were similar. Addax had higher median total white blood cell counts than sable. No significant differences in the median numbers of segmented neutrophils, band neutrophils, and eosinophils were detected among species. Basophils were only found in the scimitar-horned oryx in one animal. Addax had higher median lymphocyte counts than sable and Arabian oryx as well as higher median monocyte counts than sable. All four species exhibited higher median counts of neutrophils compared with lymphocytes. The biomedical differences observed highlight the importance of having an accurate database of clinical normal values against which to evaluate neonatal health. Zoo Biol 20:47-54, 2001. Copyright 2001 Wiley-Liss, Inc.
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