(Received 8 October 1985; accepted 3 December 1985)
Published Online: July
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Fluids from frozen muscle tissue taken from 449 white-tailed deer (Odocoileus virginianus) were analyzed using a radioimmunoassay technique for testosterone. Comparing 309 deer sampled in early November, antlered males had significantly higher tissue testosterone levels (range = 0.18 to 16.00 ng/mL) than females (range = 0.00 to 0.18 ng/mL) while antlerless (fawn) males overlapped both groups (range = 0.00 to 0.68 ng/mL). Samples taken from 132 deer from January through August showed no differences among ages or sexes. Antlered males can be differentiated from females during the breeding season.
Medical technologist, Minnesota Department of Natural Resources, Forest Wildlife Populations and Research Group, Grand Rapids, MN
Stock #: JFS11120J