Line S W, Morgan K N
California Regional Primate Research Center, University of California, Davis 95616-8542.
Lab Anim Sci. 1991 Aug;41(4):365-9.
Six female and six male adult rhesus macaques were given sticks and nylon balls as an attempt at simple cage enrichment. A latin square design was used to compare behavior during separate 4-week periods with each object and during a control period with no object. Frequency and duration of 15 different behaviors were recorded. Resting was the most common activity which decreased slightly in duration when the stick or nylon ball was present (P less than 0.02). The mean duration of stick use was longer than that of the nylon ball (P less than 0.01). No other behaviors changed significantly, including the frequency of abnormal behaviors such as self-abuse, stereotypic acts, and bizarre postures. Generally, these objects were used infrequently and led to few changes in the behavior of singly-caged adult rhesus macaques. However, they did appear to stimulate activity for some individuals.
六只成年雌性恒河猴和六只成年雄性恒河猴被给予棍棒和尼龙球，作为一种简单的笼内环境丰富化尝试。采用拉丁方设计，比较在分别使用每个物品的4周时间段以及无物品的对照时间段内的行为。记录了15种不同行为的频率和持续时间。休息是最常见的活动，当有棍棒或尼龙球时，休息时间略有减少（P小于0.02）。使用棍棒的平均持续时间比使用尼龙球的长（P小于0.01）。包括自我伤害、刻板行为和怪异姿势等异常行为的频率在内，没有其他行为发生显著变化。总体而言，这些物品很少被使用，对单独关在笼中的成年恒河猴的行为几乎没有造成改变。然而，它们似乎确实刺激了一些个体的活动。
