Plaza M A, Arruebo M P, Sopena J, Bonafonte J I, Murillo M D
Department of Pharmacology and Physiology, Zaragoza University, Spain.
Res Vet Sci. 1996 Jan;60(1):55-60. doi: 10.1016/s0034-5288(96)90132-0.
The myoelectrical activity of several sections of the digestive tract of sheep has been studied as an estimation of the gastrointestinal motility. Nickel/chromium electrodes were implanted chronically in the reticulum, rumen, omasum, antrum and duodenum. The myoelectrical signals were then recorded simultaneously and stored in a computer which calculated the integrated activity, duration and period (interval) of each separate reticuloruminal spike burst and the integrated activity (over one minute intervals) in the omasum, abomasum and duodenum. The different electromyographic parameters were standardised in sheep during a period of non-ingestion (resting period), and the physiological changes in these parameters associated with rumination and feeding were measured. The main effect induced by rumination was an increase in the myoelectrical parameters in the reticulum. Feeding enhanced the total activity in all regions studied. In the reticulorumen this increase was due to a rise in the frequency of the spike bursts, although there was a decrease in the integrated activity and duration of each individual spike burst.
为评估胃肠动力，对绵羊消化道几个部位的肌电活动进行了研究。将镍/铬电极长期植入网胃、瘤胃、瓣胃、胃窦和十二指肠。然后同时记录肌电信号，并存储在计算机中，该计算机计算每个单独的网瘤胃尖峰爆发的综合活动、持续时间和周期（间隔），以及瓣胃、皱胃和十二指肠的综合活动（以一分钟为间隔）。在非摄食期（休息期）对绵羊的不同肌电图参数进行标准化，并测量这些参数与反刍和进食相关的生理变化。反刍引起的主要影响是网胃肌电参数增加。进食增强了所有研究区域的总活动。在网瘤胃中，这种增加是由于尖峰爆发频率的上升，尽管每个单独尖峰爆发的综合活动和持续时间有所下降。
