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Correlations between fearfulness and social behaviours in an F7 intercross of red junglefowl and White Leghorn layers
Linköping University, Department of Physics, Chemistry and Biology.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
Abstract [en]

The aim of this thesis was to study chickens of an F7 intercross between red junglefowl and White Leghorn layers in five behavioural tests to see if there were any correlations between traits in the intercross. 80 animals were used (40 males, 40 females); they were tested in a tonic immobility test, an open field, a fear of human test, an aggression test and lastly a sociality test. The results indicate a pair of correlations between the different variables; chickens with long tonic immobility duration were less aggressive, and chickens with a high fear of humans were more social towards other chickens, which could suggest a correlation between fear and social behaviour/aggression. The results from this study also support previous studies showing that one QTL controls chickens’ behaviour in the tonic immobility test based on the correlations found between the variables in the tonic immobility test. Differences between the genders were found in variables that correlated with each other; this could lead to a speculative suggestion that those behaviours are affected by genes on the X-chromosome. There was also a significant relationship between the weight of the male chickens and their behaviour in the open field test and in the fear of human test, in which the heavier males were less fearful than the lighter ones.

Place, publisher, year, edition, pages
2009. , 20 p.
Keyword [en]
Aggression, correlations, fearfulness, intercross, leghorn layers, red junglefowl, sociality, weight.
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:liu:diva-18922ISRN: LiTH-IFM- Ex--09/2132--SEOAI: oai:DiVA.org:liu-18922DiVA: diva2:221898
Presentation
Planck, Linköping (English)
Uppsok
fysik/kemi/matematik
Supervisors
Examiners
Available from: 2009-06-23 Created: 2009-06-05 Last updated: 2009-06-23Bibliographically approved

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Correlations between fearfulness and social behaviours in an F7 intercross of red jungle fowl and White Leghorn layers.(531 kB)563 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf