On Serum Chemistry of Brown Bears in Croatia, Yugoslavia

January 1, 1987

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Blood samples were taken from 8 free-living European brown bears (Ursus arctos) from Plitvice Lakes National Park, Croatia, Yugoslavia, and 4 captive European brown bears from the Zagreb Zoological Park; zoo bears served as a control group. Up to 13 serum chemistry parameters were measured from each sample. Results revealed that the capture procedure provoked an increase of creatine kinase, creatinine, blood urea nitrogen, and serum urea. Creatine kinase was a very sensitive indicator of muscle damage. Free-living bears exhibited higher total lipid concentrations than captive bears, probably due to a more diverse diet.

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