Elving L, Pieterse M C, Vernooy A M
Tijdschr Diergeneeskd. 1983 Feb 1;108(3):85-9.
The use of a device for measuring vaginal electrical resistance was tested in dairy cattle at the time of 496 inseminations as well as in five heifers and four gilts throughout the oestrous cycle. The device can be used in oestrus detection when there is a reliable and consistent difference in vaginal electric resistance, which can be estimated between the day(s) of oestrus and during the other days of the oestrus cycle. However, the results of tests using this device in cattle and gilts showed marked variations within animals during successive heats and cycles as well as between animals on corresponding days of the oestrus cycle. This experiment therefore showed that the device was not an effective aid in heat detection.
在496次人工授精时，对奶牛使用了一种测量阴道电阻的装置，并在整个发情周期对5头小母牛和4头后备母猪进行了测试。当发情期和发情周期的其他日子之间存在可靠且一致的阴道电阻差异时，该装置可用于发情检测。然而，在奶牛和后备母猪身上使用该装置的测试结果显示，在连续的发情期和周期内，动物个体之间以及发情周期相应天数的不同动物之间存在显著差异。因此，该实验表明该装置在发情检测中并非有效辅助工具。
