I know a woman who has a buck in captivity. A dawg ran it off a bluff and broke it's leg. When the vet came and splinted it's leg, they also had it cut (castrated) and according to her, it no longer sheds it's horns. I'm no wildlife biologist and can't confirm this, but i know in the wild testosterone plays an important role.I would say he hasn't dropped last years yet, so many factors play in role when they drop there old racks. nutrition, minerals, pressure, stress, and probably the main one testosterone. I have read that buck start loosing there racks from Feb. to as late as the end of April or first of May and that one buck will probably run a 6 year cycle of around the same time each year with loosing each within an 48 hour period. Who knows for sure.
that is not my own research and take no credit for it, just informational and of interest to deer hunters and biologists alike....Why Are There Annual Cycles In Antler Growth?
Believe it or not, the 23 degree tilt of the Earth's axis is the ultimate
cause for the annual cycles in deer antlers. This tilt is what causes
Earth's annually recurring seasons. Deer have adapted their physiology and behavior to these seasonal changes, including antler growth. The
environmental cue that regulates antler growth is the amount of day
length, or photoperiod.
The physiological cue is the male hormone testosterone. The way this works is complicated, but changing day lengths are sensed by the eyes, which send this message, via the optic nerve, to the pineal gland. The pineal gland - a pea-sized organ at the base of the brain - produces many different hormones. One hormone produced is luteinizing hormone, which controls the amount of testosterone produced in the testes.
The antler cycle lags behind the changes in day length because the
hormonal changes take time. During fall, decreasing day lengths cause
melatonin production to increase, resulting in decreased production of
both luteinizing hormone and testosterone. Decreasing testosterone levels then cause the antlers to shed.