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Behavioural Study of Captive Sloth Bears Using Environmental Enrichment Tools

机译：使用环境富集工具圈养懒熊的行为研究

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摘要

Effects of environmental enrichment on behavioural changes were studied in five captive sloth bears kept in confined enclosure at Zoological Park, Chennai, India. Behavioural categories like active, passive, and abnormal behaviours were taken for thestudy. The activity budget was recorded as a single animal scan. The detailed baseline data of 150 hours, over a period of 30 days, were collected. At baseline, bears exhibited passive and more abnormal behaviours. Similarly, after application of the environmental tools like honey-log, underground food pipes, and wobbling box in the enclosure, the data were collected for 150 hours (30 days). Increased active behaviours and decreased abnormal behaviours were observed and showed highly significant changesin the abnormal behaviour as a whole when compared to the baseline level. During the postenrichment period, the data that were collected for 150 hours (30 days) showed no significant differences statistically between the behavioural categories. But certain level of difference was evident from the percentage of abnormal behaviours exhibited by individual bears. Among the enrichment devices, honey-log was the most preferred enrichment tool as revealed by the percentage of time spent by individual animal.The results show that application of enrichment tool continuously may bring long term effect in stereotypic behaviour.
机译：在印度钦奈的动物园内，对五只圈养的树懒熊进行了研究，研究了环境富集对行为改变的影响。采取主动，被动和异常行为等行为类别进行研究。活动预算记录为一次动物扫描。收集了30天内150个小时的详细基准数据。在基线时，熊表现出被动和更多的异常行为。同样，在使用环境工具（如蜜木棒，地下食物管道和外壳中的摆动盒）后，收集了150小时（30天）的数据。与基线水平相比，观察到活动行为增加和异常行为减少，并且整体上异常行为表现出非常显着的变化。在富集后的时期内，收集的150小时（30天）的数据显示，行为类别之间在统计学上没有显着差异。但是，从个别熊表现出的异常行为的百分比中可以看出一定程度的差异。从单个动物所花费的时间百分比可以看出，在浓缩设备中，蜜糖原木是最优选的浓缩工具。结果表明，连续使用浓缩工具可能会对定型行为产生长期影响。

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