Sex impacts pain behaviour but not emotional reactivity of lambs following ring tail docking.
Acute pain
Affective state
Animal welfare
Attention bias
Sex
Sheep
Startle
Tail docking
Journal
PeerJ
ISSN: 2167-8359
Titre abrégé: PeerJ
Pays: United States
ID NLM: 101603425
Informations de publication
Date de publication:
2023
2023
Historique:
received:
14
11
2022
accepted:
27
02
2023
medline:
4
4
2023
entrez:
3
4
2023
pubmed:
4
4
2023
Statut:
epublish
Résumé
Studies in humans have shown sex differences in response to painful events, however, little is known in relation to sex differences in sheep. Understanding sex differences would enable improved experimental design and interpretation of studies of painful procedures in sheep. To examine sex differences in response to pain, 80 lambs were tested across five cohorts of 16. The lambs were penned in groups containing two male and two female lambs with their respective mothers. Lambs were randomly allocated from within each block to one of four treatment groups; FRing-Female lamb, ring tail docked without analgesia, MRing-Male lamb, ring tail docked without analgesia, FSham-Female lamb, tail manipulated and MSham-Male lamb, tail manipulated. Following treatment, lambs were returned to their pen and were video recorded for 45 mins for behavioural observations of acute pain and posture. An hour after treatment, lambs then underwent an emotional reactivity test that consisted of three phases: Isolation, Novelty and Startle. Following treatment, Ring lambs displayed more abnormal postures (mean = 2.5 ± 0.5) compared to Sham lambs (mean = 0.05 ± 0.4,
Identifiants
pubmed: 37009150
doi: 10.7717/peerj.15092
pii: 15092
pmc: PMC10064992
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e15092Informations de copyright
©2023 Marini et al.
Déclaration de conflit d'intérêts
The authors declare there are no competing interests.
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