Six arctic foxes (Alopex lagopus) were marked with iophenoxic acid (IA), a substance which elevates concentrations of protein-bound iodine in blood plasma. Buccal absorption of IA was determined by placing 20 mg IA dissolved in 100% ethyl alcohol on the tongue. Blood samples collected from 1 to 36 wk following exposure showed that all foxes were marked already at 1 wk and continued until 13 wk; two foxes were still marked at 36 wk. Clearance rates for iodine varied with initial dose response, and those foxes with high 1-wk iodine concentrations excreted iodine more rapidly than those with lower initial concentrations; by 13-wk excretion rates were similar.
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1 October 1987
Plasma Marking of Arctic Foxes with lophenoxic Acid
Erich H. Follmann,
Peter J. Savarie,
Donald G. Ritter,
George M. Baer
Journal of Wildlife Diseases
Vol. 23 • No. 4
October 1987
Vol. 23 • No. 4
October 1987
Arctic fox (Alopex lagopus)
experimental marking
iophenoxic acid
plasma marker