Mazrier Hamutal, Tal Shlomit, Aizinbud Eliezer, Bargai Uri
Tzora Veterinary Clinic, Kibbutz Tzora, Israel.
Can Vet J. 2006 Sep;47(9):883-6.
The efficacy of the pedometer to predict lameness earlier than the appearance of the clinical signs in a herd of dairy cows was investigated by correlating pedometric activity (PA) with clinical cases of lameness. The computer program was set to identify cows with a reduction of 5% or more in PA compared with their own previous 10 days average; these animals were then examined for clinical lameness. At the same time, every lame cow was checked to see if and when its PA was reduced. Forty-six cows showed a reduced PA; 38 cases of lameness were identified by either a reduction in PA or clinical observation; of these, 21 lame cows (45.7%) showed a reduction in PA of 5% or more, 7 to 10 days prior to the appearance of clinical signs. This cohort comprised 55.3% of the lame cows. In 92% of the lame cows identified by PA, the decrease was above 15%.
通过将计步活动（PA）与跛行临床病例相关联，研究了计步器在奶牛群中比临床症状出现更早预测跛行的功效。计算机程序设置为识别与自身前10天平均水平相比PA降低5%或更多的奶牛；然后对这些动物进行临床跛行检查。同时，检查每头跛行奶牛，看其PA是否以及何时降低。46头奶牛PA降低；通过PA降低或临床观察确定了38例跛行；其中，21头跛行奶牛（45.7%）在临床症状出现前7至10天PA降低了5%或更多。该队列占跛行奶牛的55.3%。在通过PA识别出的跛行奶牛中，92%的奶牛PA下降超过15%。
