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Circadian variation in ghrelin and certain stress hormones in crib-biting horses

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dc.contributor University of Helsinki, Palmenia Helsinki en
dc.contributor University of Helsinki, Faculty of Veterinary Medicine en
dc.contributor University of Helsinki, Faculty of Veterinary Medicine en
dc.contributor University of Helsinki, Department of Agricultural Sciences en
dc.contributor University of Helsinki, Faculty of Veterinary Medicine en
dc.contributor.author Hemmann, Karin
dc.contributor.author Raekallio, Marja
dc.contributor.author Kanerva, Kira
dc.contributor.author Hänninen, Laura
dc.contributor.author Pastell, Matti
dc.contributor.author Palviainen, Mari
dc.contributor.author Vainio, Outi
dc.date.accessioned 2012-08-09T10:10:00Z
dc.date.available 2012-08-09T10:10:00Z
dc.date.issued 2012
dc.identifier.citation Hemmann , K , Raekallio , M , Kanerva , K , Hänninen , L , Pastell , M , Palviainen , M & Vainio , O 2012 , ' Circadian variation in ghrelin and certain stress hormones in crib-biting horses ' The Veterinary Journal , vol 193 , no. 1 , pp. 97-102 . , 10.1016/j.tvjl.2011.09.027 en
dc.identifier.issn 1090-0233
dc.identifier.other PURE: 16852060
dc.identifier.uri http://hdl.handle.net/10138/35768
dc.description.abstract Crib-biting is classified as an oral stereotypy, which may be initiated by stress susceptibility, management factors, genetic factors and gastrointestinal irritation. Ghrelin has been identified in the gastric mucosa and is involved in the control of food intake and reward, but its relationship to crib-biting is not yet known. The aim of this study was to examine the concentration and circadian variation of plasma ghrelin, cortisol, adrenocorticotropic hormone (ACTH) and β-endorphin in crib-biting horses and non-crib-biting controls. Plasma samples were collected every second hour for 24 h in the daily environment of eight horses with stereotypic crib-biting and eight non-crib-biting controls. The crib-biting horses had significantly higher mean plasma ghrelin concentrations than the control horses. The circadian rhythm of cortisol was evident, indicating that the sampling protocol did not inhibit the circadian regulation in these horses. Crib-biting had no statistically significant effect on cortisol, ACTH or β-endorphin concentrations. The inter-individual variations in β-endorphin and ACTH were higher than the intra-individual differences, which made inter-individual comparisons difficult and complicated the interpretation of results. Further research is therefore needed to determine the relationship between crib-biting and ghrelin concentration. en
dc.language.iso eng
dc.publisher W.B./SAUNDERS CO. LTD.
dc.relation.ispartof The Veterinary Journal
dc.subject 413 Veterinary science en
dc.subject Horse en
dc.subject Cortisol en
dc.subject crib-biting en
dc.subject equine en
dc.subject circadian rhythm en
dc.subject ghrelin en
dc.title Circadian variation in ghrelin and certain stress hormones in crib-biting horses en
dc.type A1 Refereed journal article
dc.description.version Peer reviewed
dc.identifier.doi http://dx.doi.org/10.1016/j.tvjl.2011.09.027
dc.type.dcmitype textfile
dc.type.uri info:eu-repo/semantics/article
dc.type.uri info:eu-repo/semantics/publishedVersion
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