Cherbut C, Ruckebusch Y
Br J Nutr. 1985 May;53(3):549-57. doi: 10.1079/bjn19850064.
The myoelectric activity of the colon was examined in three dogs and three pigs when they were given a basal diet or a basal diet plus indigestible particles (IP), 2 mm in diameter, at 100 g/kg dry matter. The mean retention time was determined using coloured discs as a marker added to the daily meal. Colonic electromyograms of dogs and pigs given IP revealed a 30% reduction in the number of long spike bursts (LSB) when compared with controls. The other components, propulsive migrating spike bursts (MSB) or non-propulsive short spike bursts (SSB), were unchanged. Mean retention time was decreased from 28.6 h to 17.6 h in dogs and from 129 h to 94.2 h in pigs. These changes developed progressively during 3-4 d in both species, suggesting that the reduction in motor activity was an adaptation to the changes in bulk contents. From the decreased motility of the colon linked to the reduction of LSB and paralleled by an increased transit time, it was concluded that one of the functions of the LSB is to impede the passage of digesta.
在三只狗和三头猪摄入基础日粮或基础日粮加直径2毫米、含量为100克/千克干物质的不可消化颗粒（IP）时，对其结肠的肌电活动进行了检测。使用添加到日常日粮中的彩色圆盘作为标记物来测定平均滞留时间。与对照组相比，摄入IP的狗和猪的结肠肌电图显示长棘波爆发（LSB）数量减少了30%。其他成分，即推进性移行棘波爆发（MSB）或非推进性短棘波爆发（SSB），则没有变化。狗的平均滞留时间从28.6小时降至17.6小时，猪的平均滞留时间从129小时降至94.2小时。在这两个物种中，这些变化在3 - 4天内逐渐出现，这表明运动活性的降低是对内容物体积变化的一种适应。从与LSB减少相关的结肠运动性降低以及与之平行的转运时间增加可以得出结论，LSB的功能之一是阻碍消化物的通过。
