Shift of seasonal cycle in white‐tailed deer by oral administration of melatonin

A complete reversal of seasonally dependent events, like antler growth and change of pelage was achieved in white‐tailed bucks by oral application of melatonin. The drug was administered in a way that simulated the shortening of the natural photoperiod. Mineralization of antlers, shedding of velvet, complete change of summer pelage, and the onset of the rutting behavior was initiated aproximately 2 months ahead of time.