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Effects of Nitrogen and Season on Western Grey Kangaroo Hematology

D. Algar, G. W. Arnold and A. Grassia
The Journal of Wildlife Management
Vol. 52, No. 4 (Oct., 1988), pp. 616-619
Published by: Wiley on behalf of the Wildlife Society
DOI: 10.2307/3800919
Stable URL: http://www.jstor.org/stable/3800919
Page Count: 4
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Effects of Nitrogen and Season on Western Grey Kangaroo Hematology
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Abstract

We fed western grey kangaroos (Macropus fuliginosus ocydromus) isocaloric diets that contained 1.23, 1.62, 2.01, and 2.52% nitrogen (N) to examine the effect of N on hematology. Dietary N had a small effect (P = 0.0269) on plasma cholesterol level but a large (P < 0.0001) effect on blood urea nitrogen (BUN). The BUN increased from 7.79 mMoles/L on the 1.23% N diet to 11.6 mMoles/L on the 2.52% N diet. Other blood measures were unaffected by dietary N. Seasonal effects, which were independent of dietary N, were noted for blood measures. Red blood cell count and hemoglobin were higher during April-September than during October-March. Packed cell volume was higher and cholesterol lower during April-June, whereas BUN was higher in July-December.

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