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Repetitive Backflipping Behaviour in Captive Roof Rats (Rattus Rattus) and the Effects of Cage Enrichment

Published online by Cambridge University Press:  11 January 2023

M D Callard
Affiliation:
Department of Animal Science, University of California, One Shields Avenue, Davis, CA 95616, USA
E O Price*
Affiliation:
Department of Animal Science, University of California, One Shields Avenue, Davis, CA 95616, USA
*
Contact for correspondence and requests for reprints

Abstract

Repetitive ‘stereotyped’ behaviours are often performed by both wild and domestic rodents in small laboratory cages. In this study, a behaviour resembling a backwards somersault or backflip is described and quantified in captive roof rats (ship or black rats, Rattus rattus). Videotapes of captive-bred rat pups showed that repetitive backflipping developed rapidly after weaning. In all subjects, the behaviour was highly cyclical, with more than 90 per cent occurring during the dark phase of the light:dark cycle. Individual variability in the performance of backflipping was considerable but performance levels for each individual were consistent from day to day and at 30 and 60 days of age. Highly significant differences were found between litters (families), indicating important maternal and/or genetic effects on performance levels. Cage enrichment in the form of a wooden nest box resulted in dramatically lower rates of performance. Increased cage height resulted in delayed development of backflipping, as well as changes in the form of the behaviour. Results are consistent with the hypothesis that the development and expression of backflipping in young roof rats may be triggered by weaning and maintained by a heightened state of arousal in a relatively impoverished environment with limited opportunities for perceptual and locomotor stimulation.

Type
Research Article
Copyright
© 2000 Universities Federation for Animal Welfare

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Footnotes

2

Present address: Department of Psychology and Human Ecology, Cameron University, Lawton, OK 73505, USA

References

Appleby, M C, Lawrence, A B and Illius, A W 1989 Influence of neighbours on stereotypic behaviour of tethered sows. Applied Animal Behaviour Science 24: 137146CrossRefGoogle Scholar
Arnold, C E and Estep, D Q 1993 Laboratory caging preferences in golden hamsters (Mesocricetus auratus). Laboratory Animals 28: 232238CrossRefGoogle Scholar
Berkson, G and Mason, W A 1964 Stereotyped behaviors of chimpanzees: relation to general arousal and alternative activities. Perceptual Motor Skills 19: 635652CrossRefGoogle ScholarPubMed
Chamove, A S 1989 Cage design reduces emotionality in mice. Laboratory Animals 23: 215219CrossRefGoogle ScholarPubMed
Cooper, J J and Nicol, C J 1991 Stereotypic behaviour affects environmental preference in bank voles, Clethrionomys glareolus. Animal Behaviour 41: 971977CrossRefGoogle Scholar
Cooper, J J and Nicol, C J 1994 Neighbour effects on the development of locomotor stereotypies. Animal Behaviour 47: 214216CrossRefGoogle Scholar
Cooper, J J and Nicol, C J 1996 Stereotypic behaviour in wild caught and laboratory bred bank voles (Clethrionomys glareolus). Animal Welfare 5: 245257CrossRefGoogle Scholar
Cooper, J J, Odberg, F and Nicol, C J 1996 Limitations on the effectiveness of environmental improvement in reducing stereotypic behaviour in bank voles (Clethrionomys glareolus). Applied Animal Behaviour Science 48: 237248CrossRefGoogle Scholar
Cronin, G M, van Tartwijk, J M F M, van der Hel, W and Verstegen, M W A 1986 The influence of degree of adaptation to tether-housing by sows in relation to behaviour and energy metabolism. Animal Production 42: 257268Google Scholar
Draper, W A and Bernstein, I S 1963 Stereotyped behavior and cage size. Perceptual Motor Skills 16: 231 -234CrossRefGoogle Scholar
Elwood, R W and Broom, D M 1978 The influence of litter size and parental behaviour on the development of Mongolian gerbil pups. Animal Behaviour 26: 438454CrossRefGoogle Scholar
Hansen, S W and Damgaard, B 1991 Effect of environmental stress and immobilization on stress physiological variables in farmed mink. Behavioural Processes 25: 191 -204CrossRefGoogle ScholarPubMed
Hutt, C and Hutt, S J 1970 Stereotypies and their relation to arousal. In: Hutt, S J and Hutt, C (eds) Behavioural Studies in Psychiatry pp 175205. Pergamon Press: Oxford, UKGoogle Scholar
Keiper, R 1969 Drug effects on canary stereotypies. Psychopharmacologia 16: 1624CrossRefGoogle Scholar
Manser, C E, Broom, D M, Overend, P and Morris, T H 1998 Operant studies to determine the strength of preference in laboratory rats for nest-boxes and nesting materials. Laboratory Animals 32: 3641CrossRefGoogle ScholarPubMed
Mason, G J 1993 Age and context affect the stereotypies of caged mink. Behaviour 127: 191229CrossRefGoogle Scholar
Odberg, F 1986 The jumping stereotypy in the bank vole (Clethrionomys glareolus). Biology of Behavior 11: 130143Google Scholar
Odberg, F 1987 The influence of cage size and environmental enrichment on the development of stereotypies in bank voles (Clethrionomys glareolus). Behavioural Processes 14: 155173CrossRefGoogle ScholarPubMed
Rushen, J 1984 Stereotyped behaviour, adjunctive drinking and the feeding periods of tethered sows. Animal Behaviour 32: 10591067CrossRefGoogle Scholar
Rushen, J, Lawrence, A B and Terlouw, E M C 1993 The motivational basis of stereotypies. In: Lawrence, A B and Rushen, J (eds) Stereotypic Animal Behaviour pp 4164. CAB International: Wallingford, UKGoogle Scholar
Sorensen, G and Randrup, A 1986 Possible protective value of severe psychopathology against lethal effects of an unfavorable milieu. Stress Medicine 2: 103105Google Scholar
Townsend, P 1997 Use of in-cage shelters by laboratory rats. Animal Welfare 6: 95103CrossRefGoogle Scholar
Van de Weerd, H A and Baumans, V 1995 Environmental enrichment in rodents. In: Smith, C P and Taylor, V (eds) Environmental Enrichment Information Resources for Laboratory Animals pp 145151. United States Department of Agriculture: Washington DC, USAGoogle Scholar
Van de Weerd, H A, Van Loa, P L P, Van Zutphen, L F M, Koolhaas, J M and Baumans, V 1998 Preferences for nest boxes as environmental enrichment for laboratory mice. Animal Welfare 7: 1125CrossRefGoogle Scholar
Wiedenmayer, C 1996 Effect of cage size on the ontogeny of stereotyped behaviour in gerbils. Applied Animal Behaviour Science 47: 225–223CrossRefGoogle Scholar
Wiedenmayer, C 1997a The early ontogeny of bar-gnawing in laboratory gerbils. Animal Welfare 6: 273277CrossRefGoogle Scholar
Wiedenmayer, C 1997b Stereotypies resulting from a deviation in the ontogenetic development of gerbils. Behavioural Processes 39: 215221CrossRefGoogle ScholarPubMed
Wiedenmayer, C 1997c Causation of the ontogenetic development of stereotypic digging in gerbils. Animal Behaviour 53: 461470CrossRefGoogle Scholar
Wurbel, H and Stauffacher, M 1996 Prevention of stereotypy in laboratory mice: effects on stress-physiology and behaviour. Physiology and Behavior 59: 11631170CrossRefGoogle ScholarPubMed
Wurbel, H and Stauffacher, M 1997 Age and weight at weaning affect corticosterone level and development of stereotypies in ICR-mice. Animal Behaviour 53: 891900CrossRefGoogle Scholar
Wurbel, H, Stauffacher, M and von Holst, D 1996 Stereotypies in laboratory mice: quantitative and qualitative description of the ontogeny of ‘wire-gnawing’ and ‘jumping’ in Zur:ICR and Zur:ICR nu mice. Ethology 102: 371385CrossRefGoogle Scholar