Kallweit E, Ellendorf F, Daly C, Smidt D
Dtsch Tierarztl Wochenschr. 1989 Mar;96(3):89-92.
In a first trial the cortical activity of cattle and sheep was tested using only an electrocorticogram (ECoG). The results showed a shorter phase after sticking or the ritual slaughter cut respectively, until the ECoG disappears in stunned animals. However, considering the time between stunning and the cervical state, the interval until disappearance of the ECoG was prolonged in the stunned animals. The observed time differences, however, are only a tendency and not statistically confirmed. Insofar, concerning animal protection, the different slaughter methods could be regarded equivalent. A second trial was designed in a manner to allow a more exact interpretation of the ECoGs and was completed by measuring visually and somatosensorically evoked potentials. Additionally, in contrast to the first trial, only adult cattle were used here. The results revealed shorter intervals until disappearance of cortical activities when using captive-bolt stunning. Also the variance was much lower in this trial than after ritual slaughter. The mean of the time differences was relatively low (5.5 seconds). It was especially remarkable that after captivebolt stunning absolutely no evoked potentials could be registrated, whereas these potentials lasted for 77 seconds (somatosensorically evoked potentials) and 55 seconds respectively (visually evoked potentials) after the ritual slaughter cut. Thus, after ritual slaughter a nervous conduction was measured up to 126 seconds in the extreme cases. However, from the results obtained it can not be concluded whether or not pain sensitivity occurred in the animals.
在首次试验中，仅使用脑电图（ECoG）对牛和羊的皮层活动进行了测试。结果显示，在致昏动物中，分别在电击或宗教仪式屠宰切割后，直到脑电图消失的阶段更短。然而，考虑到致昏和颈部切割之间的时间，致昏动物中脑电图消失前的间隔延长了。然而，观察到的时间差异只是一种趋势，尚未得到统计学证实。就此而言，在动物保护方面，不同的屠宰方法可被视为等效。第二次试验的设计方式允许对脑电图进行更准确的解读，并通过测量视觉和体感诱发电位来完成。此外，与第一次试验不同，此次仅使用成年牛。结果显示，使用栓式电击致昏时，皮层活动消失前的间隔更短。而且，此次试验中的方差也远低于宗教仪式屠宰后的方差。时间差异的平均值相对较低（5.5秒）。特别值得注意的是，在栓式电击致昏后完全无法记录到诱发电位，而在宗教仪式屠宰切割后，这些电位分别持续了77秒（体感诱发电位）和55秒（视觉诱发电位）。因此，在宗教仪式屠宰的极端情况下，可测量到神经传导长达126秒。然而，从获得的结果无法得出动物是否存在痛觉敏感性的结论。
