Light-dark variation and changes across the lactational period in the behaviors of undisturbed mother and infant guinea pigs (Cavia porcellus).
Light-dark variation and changes across the lactational period in the behaviors of undisturbed mother and infant guinea pigs (Cavia porcellus).
复制标题
未受干扰的母豚鼠和幼豚鼠（Cavia porcellus）在整个哺乳期的行为的明暗变化和变化。
DOI：
10.1037//0735-7036.104.3.283
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发表时间：
1990
影响因子：
1.4
通讯作者：
M. Hennessy
中科院分区：
文献类型：
--
作者：
P. Schiml;M. Hennessy
哺乳期豚鼠（Cavia porcellus）及其窝仔在产后1、11、21和31天通过视频摄影法观察光/暗周期。在黑暗中观察到最高水平的行为活动，特别是在光抵消后的一小时内。这种昼夜节律模式在第1天的母亲和第11天的幼崽中很明显。母亲和幼崽之间的接触呈负相关的活动，更频繁地发生在光。幼仔的母体梳理发生在第1天，然后下降：幼仔的自我梳理在几天内增加。幼仔在第1天摄入固体食物和水，此后增加。在21-31日龄之间观察到从哺乳到独立摄食的几乎完全过渡。总之，我们记录了几个个体发育的变化，在年轻的豚鼠，并证明在实验室条件下，母亲和婴儿豚鼠表现出夜间活动模式。
Lactating guinea pigs (Cavia porcellus) and their litters were observed by videophotography across the light/dark cycle at 1, 11, 21, and 31 days postpartum. The highest level of behavioral activity was seen in the dark, particularly in the hour after light offset. This circadian pattern was evident from Day 1 in mothers and from Day 11 in pups. Contact between mothers and pups was inversely related to activity, occurring more frequently during light. Maternal grooming of pups occurred on Day 1 and then declined: self-grooming by pups increased across days. Intake of solid food and water by pups occurred on Day 1 and increased thereafter. A nearly complete transition from nursing to independent ingestion was observed between 21-31 days of age. Overall, we document several ontogenetic changes in young guinea pigs and demonstrate that under laboratory conditions mother and infant guinea pigs exhibit a nocturnal activity pattern.