Daly C C, Whittington P E
Institute of Food Research, Bristol Laboratory, Langford.
Res Vet Sci. 1989 May;46(3):406-8.
In order to identify the physical component of captive bolt stunning responsible for abolishing visual evoked responses, experimental forms of captive bolt stunning were carried out on anaesthetised sheep. Supporting the captive bolt pistol away from the skull to permit limited penetration of the brain was found to be as effective as conventional shooting methods at abolishing visual evoked responses (responses were lost in all animals). Whereas, manual insertion of the bolt through a trephined hole or shooting through a trephined hole was significantly less effective (respectively, one of eight and four of eight animals lost responses). It is concluded that the impact of the bolt with the cranium is the principal determinant of effective stunning, rather than the penetration of the bolt into the brain tissues.
为了确定能消除视觉诱发电位的栓式击晕法中的物理因素，在麻醉的绵羊身上进行了栓式击晕法的实验形式。发现将栓式击晕枪支撑在远离头骨的位置，使大脑有有限的穿透，在消除视觉诱发电位方面与传统射击方法一样有效（所有动物的反应均消失）。而通过环锯孔手动插入螺栓或通过环锯孔射击的效果则明显较差（分别为八只动物中的一只和八只动物中的四只失去反应）。得出的结论是，螺栓与颅骨的撞击是有效击晕的主要决定因素，而不是螺栓穿透脑组织。
