Behaviour of golden hamsters (Mesocricetus auratus) - Vetsuisse ...

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Von der Vetsuisse-Fakultät der Universität Bern auf Antragvon Prof. Dr. A. Steiger als Dissertation genehmigt.Bern,Der Dekan derVetsuisse-Fakultät der Universität Bern
Table of contentPage1 Zusammenfassung 12 Behaviour of golden hamsters (Mesocricetus auratus) kept infour different cage sizes 4Abstract 5Introduction 6Methods 8Animals and housing 8Procedure and Measurements 9Procedure 9Running-wheel activity 10Behaviour 11Statistics 11Results 12Behaviour 12Running wheel 12Wire gnawing 14Grooming 16Location 16On house 17Open space 18Body weight 18Stress hormones and organs 20Discussion 21Conclusions 27References 283 Can we tell hamsters are stressed by measuring their cortisol levels? 32Abstract 33Introduction 34Methods 35Animals and husbandry 35Hormonal analyses 36Statistics 36Results 38Hormones 38Corticosterone 38Cortisol 39Cortisol/Corticosterone ratio 41ACTH 42Sampling effects 42ACTH-Challenge Test 44Discussion 45Conclusions 48References 494 Appendix 525 Danksagungen 56
Page 1: Institut für Genetik, Ernährung u
Page 5 and 6: eingerichtet. Die Laufradaktivität
Page 7 and 8: 2 Behaviour of golden hamsters (Mes
Page 9 and 10: IntroductionHamsters are common lab
Page 11 and 12: MethodsAnimals and housing conditio
Page 13 and 14: weaningvideorecordingvideorecording
Page 15 and 16: ResultsBehaviourHamsters devoted mo
Page 17 and 18: Tab. 2 Post-hoc comparisons of runn
Page 19 and 20: GroomingAll hamsters were observed
Page 21 and 22: Open spaceUsage of open space was p
Page 23 and 24: Stress hormones and organsNeither s
Page 25 and 26: directed exploration, which, after
Page 27 and 28: top wire. Some hamsters used to cli
Page 29 and 30: Autopsies of the three hamsters tha
Page 31 and 32: ReferencesBantin G.C. and Sanders P
Page 33 and 34: Sherwin C.M., 1998. Voluntary wheel
Page 35 and 36: 3 CAN WE TELL HAMSTERS ARE STRESSED
Page 37 and 38: IntroductionConcentrations of gluco
Page 39 and 40: The experiments were approved by th
Page 41 and 42: ResultsMales had generally higher v
Page 43 and 44: Fig. 1 The concentration of cortiso
Page 45 and 46: ACTHLevels of ACTH were significant
Page 47 and 48: ACTH-Challenge TestIn the ACTH-chal
Page 49 and 50: negative feedback of cortisol: incr
Page 51 and 52: ConclusionsSince the stress respons
Page 53 and 54:
Kuhnen, G., Werner, R. 1998. Plasma
Page 55 and 56:
4 AppendixApp. I Cage size 1 (right
Page 57 and 58:
App. IV Behaviour catalogue. Descri
Page 59:
5 DanksagungenIch möchte allen dan
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