Publication Date: January 1, 2008
Reference: Applied Animal Behaviour Science 114 (2008) 105–115
Country: Germany
Summary:
Focussing on vocal expressions of distress, the present study examined vocal responses of 10-week-old domestic pigs during a classical conditioning paradigm, where a neutral light stimulus (conditioned stimulus) was repeatedly followed by a short electric shock (unconditioned stimulus). It is concluded that vocalisation elicited during stressful situations can serve as a differentiated indicator of stressor quality and can be used for the instantaneous assessment of the internal states of pigs.
For more information the full article can be found at http://journals.elsevierhealth.com/periodicals/applan/issues
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