Factors affecting velvet antler weights in free-ranging reindeer in Alaska

Free-ranging reindeer on the Seward Peninsula in western Alaska are rounded up from late May to early July and antlers are removed. We used data collected from 1987 to 1997 to determine how velvet antler weights of males and females varied with age, year, reproductive status, Julian date, and body w...

Full description

Bibliographic Details
Published in:Rangifer
Main Authors: Alexander K. Prichard, Greg L. Finstad, Drew H. Shain
Format: Article in Journal/Newspaper
Language:English
Published: Septentrio Academic Publishing 1999
Subjects:
Online Access:https://doi.org/10.7557/2.19.2.282
https://doaj.org/article/0bd427a65af44455aa20d76f8b13b68c
Description
Summary:Free-ranging reindeer on the Seward Peninsula in western Alaska are rounded up from late May to early July and antlers are removed. We used data collected from 1987 to 1997 to determine how velvet antler weights of males and females varied with age, year, reproductive status, Julian date, and body weight. Male antler weights increased with age up to age five years, and were lower in castrates than in bulls. There was a significant positive relationship between body weight and antler weight in both sexes. Female antler weights increased with age until at least age nine. Lactating females had lower antler weights than non-lactating females, but this effect is better explained by differences in body weight. Antler weight of individual reindeer at age two years was better predicted by their antler weights as yearlings than their body weight as yearlings.