Haigh Jerry, Berezowski John, Woodbury Murray R
Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon.
Can Vet J. 2005 May;46(5):413-6.
Data were obtained from a questionnaire administered to a random sample of Canadian and United States white-tailed deer (WTD) farmers. Reproductive indices and survival of fawns from birth until 1 y of age were examined. Major factors in limiting herd increase were a low reproductive rate (88 fawns per 100 does exposed to bucks) and a 30% mortality of fawns from birth until 1 y of age. The latter figure differs from reported mortality rates in fallow deer and red deer/wapiti. The unacceptably high neonatal mortality on WTD farms was determined to be as important to herd productivity as failure to produce a live fawn. Industry wide, "benchmark" estimates of reproductive performance, mortality rates, and productivity are provided, allowing farmers to compare their herds against these "benchmarks" to identify areas needing improvement.
数据来自对加拿大和美国白尾鹿（WTD）养殖户随机样本进行的问卷调查。研究了小鹿从出生到1岁的繁殖指标和存活率。限制鹿群数量增长的主要因素是繁殖率低（每100只接触雄鹿的母鹿产88只小鹿）以及小鹿从出生到1岁时有30%的死亡率。后一数字与报道的黇鹿和马鹿/美洲赤鹿的死亡率不同。白尾鹿养殖场新生儿死亡率高得令人无法接受，这被认为对鹿群生产力的影响与未能产下活小鹿一样重要。在整个行业范围内提供了繁殖性能、死亡率和生产力的“基准”估计值，使养殖户能够将自己的鹿群与这些“基准”进行比较，以确定需要改进的领域。
