Commercial hatchery processing may affect susceptibility to stress in laying hens

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van Poucke, EnyaLinköpings universitet,Biologi,Tekniska fakulteten,AVIAN Behavioural Physiology and Genomics Group (författare)

Commercial hatchery processing may affect susceptibility to stress in laying hens

Artikel/kapitelEngelska2023

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PUBLIC LIBRARY SCIENCE,2023
electronicrdacarrier

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LIBRIS-ID:oai:DiVA.org:liu-198679
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-198679URI
https://doi.org/10.1371/journal.pone.0291324DOI

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Språk:engelska
Sammanfattning på:engelska

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Funding Agencies|We thank Lohmann Sverige AB for collaboration and the CBR technicians for their animal care.; Lohmann Sverige AB
Directly upon hatching, laying hen chicks are exposed to multiple stressful events during large-scale hatchery processing, which may affect their later coping abilities. Commercial hatchery chicks (HC) were compared to chicks that were incubated and hatched simultaneously under calm conditions (CC). After being raised under similar, non-stressful conditions for 36 days, all chicks were exposed to a series of stressors: transportation and introduction into a novel environment followed by a regrouping event in order to characterize long-lasting consequences of hatchery treatment. Tonic immobility, corticosterone levels, and peripheral body temperature were used to assess reactions to the stress events. Tonic immobility was not affected by treatment but was significantly reduced in CC after transport. Corticosterone levels did not differ between treatments when assessed two days before and two days after regrouping. Comb temperature was significantly higher in HC following regrouping, indicating stress-induced hyperthermia. Furthermore, comb temperature dropped more following blood sampling in HC than in CC, indicating a stronger autonomic response to acute stress. In conclusion, the results suggest possible long-term negative effects of commercial hatchery processing, compared to hatching under silent and less stressful conditions, on the coping ability of laying hens to later stressful experiences.

Ämnesord och genrebeteckningar

SAMHÄLLSVETENSKAP Psykologi Tillämpad psykologi hsv//swe
SOCIAL SCIENCES Psychology Applied Psychology hsv//eng

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Suchankova, HedvikaLinköpings universitet,Biologi,Tekniska fakulteten,AVIAN Behavioural Physiology and Genomics Group(Swepub:liu)n/a (författare)
Jensen, PerLinköpings universitet,Biologi,Tekniska fakulteten,AVIAN Behavioural Physiology and Genomics Group(Swepub:liu)perje15 (författare)
Linköpings universitetBiologi (creator_code:org_t)

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Ingår i:PLOS ONE: PUBLIC LIBRARY SCIENCE18:91932-6203

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Av författaren/redakt...: van Poucke, Enya; Suchankova, Hedv ...; Jensen, Per

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SAMHÄLLSVETENSKAP: SAMHÄLLSVETENSKA ...; och Psykologi; och Tillämpad psykol ...

Artiklar i publikationen: PLOS ONE

Av lärosätet: Linköpings universitet

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