To describe the yearling antler cycle of pampas deer bucks (Ozotoceros bezoarticus) 22 bucks and 72 antler cycles
have been studied in a semi-captive population. Date of individual antler cast, first day on which the brow and the trez
tine were observed, and day of the velvet shedding were registered. Time intervals (days) between first and second
antler casts, between first antler cast and the brow tine observation, between brow and trez tines observation and from
first antler cast to velvet shedding were calculated. The brow and the trez tine were first observed 22.870.6 and
45.970.9 days after the first antler cast. Velvet shedding was observed 103.372.1 days after the first antler cast. Both
antlers casts were observed earlier in adult cycle bucks than in first antler bucks, although the interval between both
casts was not different. The interval from the brow tine observation to the trez tine observation was shorter in first
antler cycle bucks than in adults. As in other deer species, antler cycle was seasonal, but persistence of cycle-to-cycle
antler growth well into adulthood is different from what occurs in most deer species.
To describe the yearling antler cycle of pampas deer bucks (Ozotoceros bezoarticus) 22 bucks and 72 antler cycles
have been studied in a semi-captive population. Date of individual antler cast, first day on which the brow and the trez
tine were observed, and day of the velvet shedding were registered. Time intervals (days) between first and second
antler casts, between first antler cast and the brow tine observation, between brow and trez tines observation and from
first antler cast to velvet shedding were calculated. The brow and the trez tine were first observed 22.870.6 and
45.970.9 days after the first antler cast. Velvet shedding was observed 103.372.1 days after the first antler cast. Both
antlers casts were observed earlier in adult cycle bucks than in first antler bucks, although the interval between both
casts was not different. The interval from the brow tine observation to the trez tine observation was shorter in first
antler cycle bucks than in adults. As in other deer species, antler cycle was seasonal, but persistence of cycle-to-cycle
antler growth well into adulthood is different from what occurs in most deer species.
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