Tobler I, Jaggi K, Arendt J, Ravault J P
Institute of Pharmacology, University of Zürich, Switzerland.
Experientia. 1991 Jul 15;47(7):744-9. doi: 10.1007/BF01958833.
Motor activity of sheep was continuously recorded for 2-3 weeks with an ambulatory monitoring device. Recordings were obtained from free-ranging animals in the field and from animals maintained under various controlled conditions in stalls. The sheep were diurnal under all conditions. While the daily amount of activity and the frequency of rest episodes showed only small differences between the conditions, the rest-activity pattern showed prominent differences. The pattern differed particularly between the field and the stalls. In the field, activity started to increase one hour after dawn, reaching a first maximum towards noon; a second, higher peak in the evening was followed by a rapid decline after dusk. In the stalls the onset and offset of activity was more abrupt; activity peaks coincided with feeding and human activity; the onset of rest with lights off. Activity was lowest and rest most prominent in those stalls where the animals were most isolated from human influence.
使用动态监测设备对绵羊的运动活动进行了连续2至3周的记录。记录数据来自野外自由放养的动物以及在畜栏中处于各种受控条件下饲养的动物。所有条件下绵羊均为昼行性。虽然不同条件下每日的活动量和休息时段频率仅显示出微小差异，但休息-活动模式却存在显著差异。该模式在野外和畜栏之间尤其不同。在野外，黎明后一小时活动开始增加，中午前后达到第一个峰值；傍晚出现第二个更高的峰值，黄昏后迅速下降。在畜栏中，活动的开始和结束更为突然；活动高峰与喂食及人类活动时间一致；休息则随着灯光熄灭而开始。在那些动物受人类影响最小的畜栏中，活动量最低，休息最为明显。
