Peralta F E, Boivin R, Bost J
J Physiol (Paris). 1985;80(1):8-19.
Oesophageal motility was investigated in standing conscious sheep. A manometric method was used in four animals; two sheep, fitted with permanent electrodes at four levels, were used for oesophageal electromyography. The occurrence of retrograde peristalsis (mean speed 71,5 cm.s-1) at the beginning of every rumination cycle is reasserted. The characteristics of this activity are pointed out, with reference to normal peristalsis during the deglutition of saliva. Different types of stimulation have been compared. Retrograde peristalsis (mean speed 66 cm.s-1) can be triggered readily in non-ruminating animals by the association of two stimulations. One being oesophageal distension and the other injection of a solution prepared with some physical or chemical components of the rumen liquid. No specialized sensitive area could be demonstrated. However, facilitation is evident during reticular contractions. Retrograde waves of contraction always start from the terminal part of the thoracic oesophagus, whatever the level of stimulation.
在清醒站立的绵羊身上研究了食管运动功能。对四只动物采用了测压法；两只在四个水平安装了永久电极的绵羊用于食管肌电图检查。再次证实了在每个反刍周期开始时都会出现逆行蠕动（平均速度71.5厘米/秒）。指出了这种活动的特征，并与吞咽唾液时的正常蠕动进行了比较。比较了不同类型的刺激。通过两种刺激的联合，在非反刍动物中很容易引发逆行蠕动（平均速度66厘米/秒）。一种是食管扩张，另一种是注射用瘤胃液的一些物理或化学成分配制的溶液。未发现专门的敏感区域。然而，在网状收缩期间促进作用明显。无论刺激水平如何，逆行收缩波总是从胸段食管的末端开始。
