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Title
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Hair or salivary cortisol analysis to identify chronic stress in piglets?
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Author
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Abstract
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| Hair cortisol might better represent chronic stress than salivary cortisol in piglets. To test this hypothesis, 24 female, 7-day old piglets were allocated to two groups and artificially reared. The piglets in the stressed group were exposed to overcrowding (0.10 m2/piglet) and frequent mixing with unfamiliar piglets until the age of 28 days. The control group remained in an unchanging group at a density of 0.29 m2/piglet. After 3 weeks, stressed animals had gained significantly less weight (median, here and throughout, 7.58 kg) than the control animals (6.43 kg; P = 0.021). Additionally, hair from the stressed group contained significantly higher cortisol concentrations (87.29 vs. 75.60 pg/mg hair; P = 0.005), whereas salivary cortisol concentrations did not significantly differ between groups (0.30 vs. 0.25 μg/dL saliva; P = 0.447). Weight gain and hair cortisol concentrations were significantly correlated (P = 0.036, r = −0.430), but neither of these parameters were correlated with salivary cortisol concentrations (P = 0.929, r = 0.019 and P = 0.904, r = 0.026, respectively). |
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Language
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English
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Source (journal)
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The veterinary journal. - London, 1997, currens
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Publication
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London
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Baillière Tindall
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2019
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ISSN
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1090-0233
[print]
1532-2971
[online]
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DOI
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10.1016/J.TVJL.2019.105357
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Volume/pages
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252
(2019)
, p. 1-3
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Article Reference
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105357
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ISI
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000537545300012
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Pubmed ID
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31554592
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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