Sibbald A M
Macaulay Land Use Research Institute, Aberdeen, UK.
Appetite. 1994 Jun;22(3):197-203. doi: 10.1006/appe.1994.1019.
Voluntary food intakes by 12 housed red deer hinds were recorded during six 2-week periods between April and November. Diurnal patterns of intake and feeding activity were measured by weighing food at either 5-min (April, May and June) or 1-min intervals (July, September and November). At each time of the year, mean rates of food intake, amount of feeding activity and frequency of feeding bouts were significantly greater during periods of daylight than during darkness. Food intake rate and feeding activity during daylight did not vary significantly with length of day. In darkness, however, mean food intakes per hour were less and feeding activity per hour was greater in the months when day-length was short.
在4月至11月期间的6个为期2周的时间段内，记录了12头圈养马鹿母鹿的自愿采食量。通过每隔5分钟（4月、5月和6月）或1分钟（7月、9月和11月）对食物称重来测量采食量和采食活动的昼夜模式。在每年的每个时间段，白天的平均采食量、采食活动量和采食次数均显著高于夜间。白天的采食量和采食活动与白昼长度无显著变化。然而，在夜间，白昼较短的月份每小时的平均采食量较少，每小时的采食活动较多。
