Journal of Wildlife Diseases 1987-10-01

Plasma marking of arctic foxes with iophenoxic acid.

E H Follmann, P J Savarie, D G Ritter, G M Baer

Index: J. Wildl. Dis. 23(4) , 709-12, (1987)

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Abstract

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.