Roffe T J
National Wildlife Health Research Center, U.S. Fish and Wildlife Service, Madison, Wisconsin 53711.
J Wildl Dis. 1993 Apr;29(2):295-303. doi: 10.7589/0090-3558-29.2.295.
During the 1989 caribou (Rangifer tarandus) calving season on the Arctic National Wildlife Refuge, Alaska (USA), 61 calf carcasses were examined for cause of death and associated pathology. Dead calves were located by low-level aerial searches with two fixed-wing aircraft and a helicopter over high density calving areas between the Hulahula and Aichilik rivers. Primary diagnoses included emaciation (39%), malnutrition (8%), stillbirth (21%), trauma (16%), other primary causes (7%), and undetermined causes (8%). Twenty calves had contributory renal tubular degeneration. The findings indicate that factors contributing to nutritional deprivation in calves were the major cause of neonatal mortality; however, factors affecting stillbirth, abortion, or the urogenital system may have major effects on neonatal caribou and warrant further investigation.
1989年美国阿拉斯加北极国家野生动物保护区驯鹿（Rangifer tarandus）产犊季节期间，对61头死亡幼鹿的尸体进行了死因及相关病理学检查。通过两架固定翼飞机和一架直升机在胡拉胡拉河和艾奇利克河之间的高密度产犊区域进行低空空中搜索，找到死亡幼鹿。主要诊断结果包括消瘦（39%）、营养不良（8%）、死产（21%）、外伤（16%）、其他主要病因（7%）以及病因不明（8%）。20头幼鹿存在肾小管变性。研究结果表明，导致幼鹿营养缺乏的因素是新生儿死亡的主要原因；然而，影响死产、流产或泌尿生殖系统的因素可能对新生驯鹿有重大影响，值得进一步研究。
