Rodent

Comparison of Sawdust Bedding and Wire Mesh As Cage Flooring in Preference Tests With Laboratory Rats

Rats preferred sawdust bedding and avoided cages with wire mesh or with a bare solid floor.

Year Published: 1993Animal Type: Rat, Rodent

Citation: Blom, H. J. M., van Tintelen, G., Baumans, V. et al. 1993. Comparison of Sawdust Bedding and Wire Mesh As Cage Flooring in Preference Tests With Laboratory Rats. Ph.D. Thesis, Utrecht University, Utrecht, The Netherlands.

An enriched commune housing system for laboratory rats – a preliminary view

I believe that rats housed in research laboratories in polypropylen boxes with a floor area of 1600 sqcm and a height of 20 cm are ethologically, physiologically and psychologically aberrant and cannot be considered as normal animals. An enriched group-housing...

Year Published: 1993Animal Type: Rat, Rodent

Citation: Batchelor, G. R. 1993. An enriched commune housing system for laboratory rats - a preliminary view. Animal Technology 44, 201-213.

Demonstration of Preference for Clean Versus Soiled Cages As Expressed by Laboratory Mice

Mice in cages with flooring consisting partly of wire mesh and partly of sawdust bedding chose the bedded area for sleeping. They kept their sleeping area clean and deposited almost all their excreta on the wire mesh. When offered a...

Year Published: 1993Animal Type: Mouse, Rodent

Citation: Blom, H. J. M., Witkam, A. C. P., Schlingmann, F. et al. 1993. Demonstration of Preference for Clean Versus Soiled Cages As Expressed by Laboratory Mice. Utrecht University , Utrecht, The Netherlands.

The role of substrate odours in maintaining social tolerance between male house mice (Mus musculus domesticus)

The group's odor cues protects the individual group member from being attacked. Strangers who do not have this group specific odor cue are attacked.It may be good advice to always leave some soiled bedding to assure group harmony in the...

Year Published: 1993Animal Type: Mouse, Rodent

Citation: Hurst, J. L., Fang, J., Barnard, C. J. 1993. The role of substrate odours in maintaining social tolerance between male house mice (Mus musculus domesticus). Animal Behaviour 45, 997-1006.

Should large rats be housed in large cages? An empirical issue

In the present experiment, eight large rats (489-623 g) were each allowed to choose for 24 hr between a 16.8-cm-high [barren] cage and a 23-cm-high [barren] cage. The rats failed to exhibit any preference for the higher cage. It is...

Year Published: 1993Animal Type: Rat, Rodent

Citation: Galef Jr., B. G., Durlach, P. 1993. Should large rats be housed in large cages? An empirical issue. Canadian Psychology 34, 203-207.

The effect of scents on the territorial and aggressive behaviour of laboratory rats

In the present work we analyse social relations presented by laboratory rats (Rattus norvegicus, Wistar breed) in seminatural conditions, with special reference to behaviours of dominance, territorialism and aggressiveness, and the importance that these marks of odour play on these...

Year Published: 1993Animal Type: Rat, Rodent

Citation: Garcia-Brull, P. D., Nunez, J., Nunez, A. 1993. The effect of scents on the territorial and aggressive behaviour of laboratory rats . Behavioural Processes 29, 25-36.

Effects of gender and social isolation on electroencephalogram and neuroendocrine parameters in rats

Same-sex pairs were established and partners separated after 6 weeks. The effects of 6 weeks of [subsequent] social isolation on electroencephalographic (EEG) recordings and hypothalamic-pituitary-adrenal (HPA) functioning were studied. Separation resulted in significant sleep disturbances - as measured in EEG...

Year Published: 1993Animal Type: Rat, Rodent

Citation: Ehlers, C. L., Kaneko, W. M., Owens, M. J. et al. 1993. Effects of gender and social isolation on electroencephalogram and neuroendocrine parameters in rats. Biological Psychiatry 33, 358-366.

Use of telemetry to record electrocardiogram and heart rate in freely moving mice

Applications and evalutation of radio-telemetry in the mouse are described.

Year Published: 1993Animal Type: Mouse, Rodent

Citation: Kramer, K., van Acker, S. A. B. E., Voss, H.-P. et al. 1993. Use of telemetry to record electrocardiogram and heart rate in freely moving mice. Journal of Pharmacological and Toxicological Methods 30, 209-215.

Evaluation of inanimate objects on commonly monitored variables in preclinical safety studies for mice and rats

None of the inanimate objects [gauze pads] had an adverse effect on commonly tested variables monitored in preclinical safety studies.

Year Published: 1993Animal Type: Mouse, Rat, Rodent

Citation: Watson, D. S. B. 1993. Evaluation of inanimate objects on commonly monitored variables in preclinical safety studies for mice and rats. Laboratory Animal Science 43, 378-380.

Whisker trimming behaviour in A2G mice is not prevented by offering means of withdrawal from it

It was suggested that barbering may be a form of coping with inappropriate housing.

Year Published: 1993Animal Type: Mouse, Rodent

Citation: Van den Broek, F. A. R., Omtzigt, C. M., Beynen, A. C. 1993. Whisker trimming behaviour in A2G mice is not prevented by offering means of withdrawal from it. Laboratory Animals 27, 270-272.