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Höns återhämtning efter stress samt domesticeringens effekter: En biologisk studie med ett lärarperspektiv
Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Department of Physics, Chemistry and Biology.
2011 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Den biologiska studien har visat att värphöns genom domesticeringen förändrat och anpassat sina beteenden till att leva med människor. De har utvecklat en minskad rädsla för människor och en ökad stresstålighet. I denna studie har höns återhämtning efter en stressupplevelse studerats. För att se hur domesticeringen har påverkat återhämtningen jämfördes beteenden mellan raserna White Leghorn och red junglefowl. Frågeställningarna som användes för att undersöka detta var: Hur lång tid tar det innan höns återhämtar sina naturliga beteenden, ej stressrelaterade, efter en stressupplevelse? Finns det några skillnader i återhämtningen beroende av kön eller mellan raserna White Leghorn och red junglefowl? Resultatet visade inte på en specifik tid för återhämtning men på att en tydlig återhämtning förekom. Återhämtningen visades i beteendena Relaxed Behaviour, Comfort Behaviour, Perch, Vocalisation och Stand Alert genom att uppvisandet av beteendena skiljde sig signifikant med tiden. Även signifikanta skillnader visades mellan raserna, både i beteenden som visade på återhämtning och i beteenden som inte gjorde det. En slutsats om vilken ras som återhämtade sig snabbast var svår att dra. Detta på grund av att beteendeskillnaderna visade på olika tendenser gällande återhämtning. Skillnaderna i återhämtningen mellan könen, visades tendenser på att hanarna återhämtade sig snabbare. Domesticering har även i denna studie studerats utifrån ett lärarperspektiv. Undersökningen visade att domesticering kan ingå i biologiundervisningen i områdena evolution och genetik i år 7-9.

Abstract [en]

The biological study has shown that behaviour of laying hens has changed through domestication and the hens have adapted to live with humans. They have developed less fear of humans and more resistance to stress. In this study hens’ recovery after a stressful experience has been studied. A comparison between the breeds White Leghorn and red junglefowl has been made to see how the domestication has affected the recovery. The questions of this study are therefore: How long does it take for hens’ to recover their natural behaviour, not stressrelated, after a stressful experience? Are there any differences in recovery between the different breeds White Leghorn and red junglefowl? The results did not show a specific time for recovery, but a distinct recovery was noticed in Relaxed Behaviour, Comfort Behaviour, Perch, Vocalisation and Stand Alert. This beacause of the behaviours differed significantly with time. Also significant differences existed between the breeds, both in behaviours that showed recovery and in behavious that did not. A conclusion of what breed that recovered fastest was difficult to make. This because of the differences of behaviour showed different tendencies in recovery. The differences in recovery between the sexes showed tendencies that the males recovered fastest. The domestication has also been studied from a teacherperspective. The study showed that domestication can be a part of biologyeducation in the fields of evolution and genetics in the grades 7-9.

Place, publisher, year, edition, pages
2011. , 22 p.
Keyword [en]
behaviour, domestication, fowl, recovery, red junglefowl, stress, White Leghorn.
National Category
Ecology
Identifiers
URN: urn:nbn:se:liu:diva-69217ISRN: LIU-LÄR-BI-A--11/100—SEOAI: oai:DiVA.org:liu-69217DiVA: diva2:424591
Subject / course
Ethology
Educational program
Programme for Teacher Education, Linköping
Uppsok
Agriculture, Veterinary Medicine, Forestry
Supervisors
Examiners
Available from: 2011-06-23 Created: 2011-06-19 Last updated: 2011-06-23Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • de-DE
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  • nn-NB
  • sv-SE
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