Rodent

Chronic monitoring of cardiovascular function in the conscious guinea pig using radio-telemetry

An implantable radio-telemetry device for chronic monitoring of arterial pressure and heart rate in the conscious guinea pig was validated against measurements using an exteriorized, indwelling catheter. There were no significant differences between simultaneous measurements in animals instrumented with both...

Year Published: 1994Topics: Biological Sampling & Physiological MeasurementAnimal Type: Guinea Pig, Rodent

Citation: Depasquale, M. J., Ringer, L. W., Winslow, R. L. et al. 1994. Chronic monitoring of cardiovascular function in the conscious guinea pig using radio-telemetry. Clinical Experimentation of Hypertension 16, 245-260.

Individual housing modulates daily rhythms of hypothalamic catecholaminergic system and circulating hormones in adult male rats

Male rats housed individually had higher levels of corticosterone and prolactin than did those housed six per cage.

Year Published: 1994Animal Type: Rat, Rodent

Citation: Cambardella, P., Greco, A. M., Sticchi, R. et al. 1994. Individual housing modulates daily rhythms of hypothalamic catecholaminergic system and circulating hormones in adult male rats. Chronobiology International 11, 213-221.

Effect of cage height and environmental enrichment on rat’s behaviour

Rats housed in the high cages [20 cm] showed more interest in the [gnawing] sticks than rats housed in the low cages [15 cm]. Rats in the high cages had more contact with the paper. .. Unlike the observation of...

Year Published: 1994Topics: Environmental Enrichment, HousingAnimal Type: Rat, Rodent

Citation: Hirsjarvi, P. A. 1994. Effect of cage height and environmental enrichment on rat's behaviour. In: Proceedings of the Federation of European Laboratory Animal Science Associations [FELASA] Symposium. Bunyan, J. (ed), 343-344. Royal Society of Medicine Press, London, UK.

The cage design affects intermale aggression in small groups of male laboratory mice: strain specific consequences on social organization, and endocrine activations in two inbred strains (DBA/2J and CBA/J)

The provision of a horizontal labyrinth consisting of vertical dividers with only a few openings enhanced territorial tendencies in groups of male mice, leading to increased aggression. Findings revealed strainspecific environmental effects on both social organization and endocrine states.

Year Published: 1994Animal Type: Mouse, Rodent

Citation: Haemisch, A., Gartner, K. 1994. The cage design affects intermale aggression in small groups of male laboratory mice: strain specific consequences on social organization, and endocrine activations in two inbred strains (DBA/2J and CBA/J). Journal of Experimental Animal Science 36, 101-116.

Housing of mice in an enriched environment

Mice reared in enriched cages are less emotional, react more spontaneous and are more interested in investigating their environment than mice reared under conventioanl conditions.

Year Published: 1994Animal Type: Mouse, Rodent

Citation: Scharmann, W. 1994. Housing of mice in an enriched environment. In: Proceedings of the Federation of European Laboratory Animal Science Associations [FELASA] Symposium. Bunyan, J. (ed), 335-337. Royal Society of Medicine Press, London, UK.

Effects of enriched housing environment on the behaviour of young male and female mice in four exploratory tasks

The provision of plastic boxes and wooden scaffoldings in cages reduced anxiety in mice, increased their open-field activity and improved sensorimotor skills.

Year Published: 1994Animal Type: Mouse, Rodent

Citation: Prior, H., Sachser, N. 1994/95. Effects of enriched housing environment on the behaviour of young male and female mice in four exploratory tasks. Journal of Experimental Animal Science 37, 57-68.

Responses of rats (Rattus norvegicus) to enrichment objects

The [conventional] rat box is a two dimensional environment in which the rats can only move within the horizontal plane ... This captive environment, chosen because of ease of husbandry, hygiene and economy leads to boredom and monotony with ensuing...

Year Published: 1994Animal Type: Rat, Rodent

Citation: Orok-Edem, E., Key, D. 1994. Responses of rats (Rattus norvegicus) to enrichment objects. Animal Technology 45, 25-30.

Enrichment techniques for rodents and rabbits

Environmental enrichment options are discussed and recommendations made on species-adequate husbandry practices. Enrichment relates to the husbandry of animals and refers to ways in which we can meet their behavioral needs, i.e., to look after their psychological well-being and to...

Year Published: 1994Topics: Environmental EnrichmentAnimal Type: Rabbit, Rodent

Citation: Morton, D. B. 1994. Enrichment techniques for rodents and rabbits. In: Rodents and Rabbits: Current Research Issues. Niemi, S. M., Venable, J. S., Guttman, H. N. (eds), 20-27. Scientist Center of Animal Welfare, Bethesda, MD.

A home for a mouse

Caging design recommendations which take basic, species-characteristic behavioral needs of mice into account. A great deal more time and money has been spent on arguing about methods than on observation and research. Such caging 'standards' that exist for mice owe...

Year Published: 1994Animal Type: Mouse, Rodent

Citation: Lawlor, M. M. 1994. A home for a mouse. Humane Innovations and Alternatives in Animal Experimentation 8, 569-573.

Influence of environmental enrichment and sex on predator stress response in rats

The findings of the present study suggest that an enriched environment decreases predator-induced defensive/anxiety behaviors in rats. Also, in agreement with prior research females were more defensive than males.

Year Published: 1994Animal Type: Rat, Rodent

Citation: Klein, S. L., Lambert, K. G., Durr, D. et al. 1994. Influence of environmental enrichment and sex on predator stress response in rats. Physiology and Behavior 56, 291-297.