Rodent

Cage design reduces emotionality in mice

The results of this study clearly showed that the presence of vertical partitions in the cages of mice reduced the stressfulness of caging and also led to mice which were less reactive when tested outside their cages. ... When reared...

Year Published: 1989Animal Type: Mouse, Rodent

Citation: Chamove, A. S. 1989. Cage design reduces emotionality in mice. Laboratory Animals 23, 215-219.

Effect of cage population density on plasma corticosterone and peripheral lymphocyte populations of laboratory mice

Groups were formed of 2, 4 or 8 animals in cages with a floor areas of 390 sq.cm. The results of this study suggest that population density of 4 mice per cage induced minimal stress compared to that induced by...

Year Published: 1989Animal Type: Mouse, Rodent

Citation: Peng, X., Lang, C. M., Drozdowicz, C. K. et al. 1989. Effect of cage population density on plasma corticosterone and peripheral lymphocyte populations of laboratory mice. Laboratory Animals 23, 302-306.

Plantar decubitus ulcers in rats and rabbits

Year Published: 1989Animal Type: Rabbit, Rat, Rodent

Citation: Honma, M., Kast, A. 1989. Plantar decubitus ulcers in rats and rabbits. Jikken Dobutsu 38, 253-248.

Individual housing does not influence the adaptation of the pituitary-adrenal axis and other physiological variables to chronic stress in adult male rats

Individually housed rats displayed a higher corticosterone stress response to 30-minute immobilization than group-housed rats.

Year Published: 1989Animal Type: Rat, Rodent

Citation: Giralt, M., Armario, A. 1989. Individual housing does not influence the adaptation of the pituitary-adrenal axis and other physiological variables to chronic stress in adult male rats. Physiology and Behavior 45, 477-481.

Transportation of rats affects behavior on non-transported rats in the absence of physical contact

Exposure [visual, auditory and olfactory] to stressed conspecifics was accompanied by an increase in cortisol levels.

Year Published: 1989Animal Type: Rat, Rodent

Citation: De Laat, J. M. T., Van Tintelen, G., Beynen, A. C. 1989. Transportation of rats affects behavior on non-transported rats in the absence of physical contact. Zeitschrift f?r Versuchstierkunde 32, 235-237.

Restricted daily exposure to environmental enrichment increases the diversity of exploration

Two hours of daily exposure to environmental enrichment produced similar object exploration effects than 24 hours of daily exposure.

Year Published: 1989Topics: Environmental EnrichmentAnimal Type: Rat, Rodent

Citation: Widman, D. R., Rosellini, R. A. 1989. Restricted daily exposure to environmental enrichment increases the diversity of exploration. Physiology and Behavior 47, 57-62.

Use of cage space by guinea pigs

Guinea pigs do not evenly use the space of a barren cage, which contains neither bedding or any structure. The animals spent most of the time at the periphery, close the walls of such a cage rather than in the...

Year Published: 1989Animal Type: Guinea Pig, Rodent

Citation: White, W. J., Balk, M. W., Lang, C. M. 1989. Use of cage space by guinea pigs. Laboratory Animals 23, 208-214.

Measurements of core temperature in spontaneously hypertensive rats by radiotelemetry

Handling and restraint can cause significant increases in core temperature. When SH [spontaneously hypertensive] rats are not stressed or disturbed, their core temperatures are not significantly different from that of normotensive WKY [Wistar-Kyoto] rats.

Year Published: 1990Topics: Biological Sampling & Physiological MeasurementAnimal Type: Rat, Rodent

Citation: Berkey, D. L., Meeuwsen, K. W., Barney, C. C. 1990. Measurements of core temperature in spontaneously hypertensive rats by radiotelemetry. American Journal of Physiology 258, R743-749.

Ecology and social behaviour of the Mongolian gerbils, Meriones unguiculatus, at Xilinhot, Inner Mongolia, China

Observations were made of social and territorial behaviour in a wild high-density population of Mongolian gerbils. The social units were multi-male, multi-female age-structured groups, judged to be families. The operational sex ratio was male biased. Group size varied from two...

Year Published: 1989Animal Type: Gerbil, Rodent

Citation: Agren, G., Zhou, Q., Zhong, W. 1989. Ecology and social behaviour of the Mongolian gerbils, Meriones unguiculatus, at Xilinhot, Inner Mongolia, China. Animal Behaviour 37, 11-27.

Behavioral and biochemical changes monitored in two inbred strains of mice during exploration of an unfamiliar environment

Novelty of the environment is a powerful stimulus to activate the pituitary-adrenal axis.

Year Published: 1990Animal Type: Mouse, Rodent

Citation: Cabib, S., Algeri, S., Puglisi-Allegora, S. 1990. Behavioral and biochemical changes monitored in two inbred strains of mice during exploration of an unfamiliar environment. Physiology and Behavior 47, 749-753.