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. 2013 Dec 24;(82):51012.
doi: 10.3791/51012.

Nest Building as an Indicator of Health and Welfare in Laboratory Mice

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Free PMC article

Nest Building as an Indicator of Health and Welfare in Laboratory Mice

Brianna N Gaskill et al. J Vis Exp. .
Free PMC article

Abstract

The minimization and alleviation of suffering has moral and scientific implications. In order to mitigate this negative experience one must be able to identify when an animal is actually in distress. Pain, illness, or distress cannot be managed if unrecognized. Evaluation of pain or illness typically involves the measurement of physiologic and behavioral indicators which are either invasive or not suitable for large scale assessment. The observation of nesting behavior shows promise as the basis of a species appropriate cage-side assessment tool for recognizing distress in mice. Here we demonstrate the utility of nest building behavior in laboratory mice as an ethologically relevant indicator of welfare. The methods presented can be successfully used to identify thermal stressors, aggressive cages, sickness, and pain. Observation of nest building behavior in mouse colonies provides a refinement to health and well-being assessment on a day to day basis.

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