Hair Cortisol: An Indicator of HPA Activity in Relation to Environmental Perception in New Zealand White Rabbit

    January 2012 in “ CINECA IRIS Institutial Research Information System (University of Genoa) ”
    Tanja Peric, A. Comin, Marta Montillo, Federico Canavese, Marco Stebel, Alberto Prandi
    TLDR Hair cortisol reliably indicates stress in rabbits.
    The study evaluated the hypothalamic-pituitary-adrenal (HPA) axis activity in six prepubertal female New Zealand White rabbits by measuring hair cortisol levels before, during, and after surgery. Initially, hair cortisol levels were at basal levels after a 45-day acclimatization period. Post-surgery, cortisol levels significantly increased, indicating surgical stress, but returned to baseline after 80 days and remained stable until day 240. A subsequent rise in cortisol levels was observed at day 280, attributed to a change in the enclosure operator, before returning to baseline. The findings suggested that hair cortisol is a reliable indicator of HPA axis activity and can reflect responses to different stressors, making it a valuable tool for assessing animal welfare.
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