Document Detail


Avian maternal response to chick distress.
MedLine Citation:
PMID:  21389025     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The extent to which an animal is affected by the pain or distress of a conspecific will depend on its capacity for empathy. Empathy most probably evolved to facilitate parental care, so the current study assessed whether birds responded to an aversive stimulus directed at their chicks. Domestic hens were exposed to two replicates of the following conditions in a counterbalanced order: control (C; hen and chicks undisturbed), air puff to chicks (APC; air puff directed at chicks at 30 s intervals), air puff to hen (APH; air puff directed at hen at 30 s intervals) and control with noise (CN; noise of air puff at 30 s intervals). During each test, the hens' behaviour and physiology were measured throughout a 10 min pre-treatment and a 10 min treatment period. Hens responded to APH and APC treatments with increased alertness, decreased preening behaviour and a reduction in eye temperature. No such changes occurred during any control period. Increased heart rate and maternal vocalization occurred exclusively during the APC treatment, even though chicks produced few distress vocalizations. The pronounced and specific reaction observed indicates that adult female birds possess at least one of the essential underpinning attributes of empathy.
Authors:
J L Edgar; J C Lowe; E S Paul; C J Nicol
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-9
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  -     ISSN:  1471-2954     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Clinical Veterinary Science, University of Bristol, , Langford House, Langford, Bristol BS40 5DU, UK.
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