Proctor Keith W, Kelch William J, New John C
Tennessee Bureau of Investigation, Knoxville Crime Laboratory, Knoxville, TN 37902, USA.
J Forensic Sci. 2009 Nov;54(6):1433-7. doi: 10.1111/j.1556-4029.2009.01156.x. Epub 2009 Sep 8.
Because 36.1% of U.S. households have dogs, the time of death (TOD) of dogs at crime scenes can be useful to forensic investigators. However, there are few published studies based on postmortem changes in dogs. This study, conducted indoors in still air at approximately room temperature, monitored the postmortem reduction in rectal, liver, brain, and aural temperatures in 16 dogs for 32 h after death. Graphs of temperature reduction were prepared to estimate the TOD of dogs within the first 32 h postmortem. Sex, body mass, and hair coat density did not affect the rate of body temperature reduction, but increased body weight and volume slowed it. Rectal temperature was the most convenient, reasonable site for measuring body temperature. Vitreous humor potassium ion concentration [K(+)] was measured in both eyes at c. 1.5 and 7 h after death. Both eyes had the same [K(+)] when measured simultaneously, and [K(+)] increased after death.
由于36.1%的美国家庭养狗，犯罪现场狗的死亡时间（TOD）对法医调查人员可能有用。然而，基于狗死后变化的已发表研究很少。本研究在室内、约室温的静止空气中进行，监测了16只狗死后32小时内直肠、肝脏、大脑和耳部温度的下降情况。绘制了温度下降曲线，以估计狗死后32小时内的死亡时间。性别、体重和被毛密度不影响体温下降速度，但体重和体积增加会使其减慢。直肠温度是测量体温最方便、合理的部位。在死后约1.5小时和7小时测量双眼玻璃体液钾离子浓度[K(+)]。同时测量时，双眼的[K(+)]相同，且死后[K(+)]升高。
