Rodent

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.

Population density and growth rate in laboratory mice

Weight gain reduction was noticed in male mice housed in enriched cages with rigid structures.

Year Published: 1990Animal Type: Mouse, Rodent

Citation: Peters, A., Festing, M. 1990. Population density and growth rate in laboratory mice. Laboratory Animals 24, 273-279.

The effects of handling on antibody production, mitogen responses, spleen number, and lymphocyte subpopulations

The immune response was depressed when mice were picked up by the tail and held gently in the palm without restraint. From the methodological point of view, handling of experimental animals may be a significant uncontrolled factor in many in...

Year Published: 1990Animal Type: Mouse, Rodent

Citation: Moynihan, J., Brenner, G., Koota, D. et al. 1990. The effects of handling on antibody production, mitogen responses, spleen number, and lymphocyte subpopulations. Life Sciences 46, 1937-1944.

Varied cages result in more aggression in male CFLP mice

Male CFLP mice were quicker to show signs of aggression in both large wooden cages and standard plastic holding cages to which objects such as bricks and extra sources of food and water had been added. .. Attempts to provide...

Year Published: 1990Animal Type: Mouse, Rodent

Citation: McGregor, P. K., Ayling, S. J. 1990. Varied cages result in more aggression in male CFLP mice. Applied Animal Behaviour Science 26, 277-281.

Urine marking in populations of wild house mice, Mus domesticus rutti, I. Communications between males.

Various hypotheses proposed for the function of urine marking in communication between male house mice were examined by comparing the predicted responses towards urine marks with those observed within eight captive territorial family groups. The responses of individual resident males...

Year Published: 1990Animal Type: Mouse, Rodent

Citation: Hurst, J. L. 1990. Urine marking in populations of wild house mice, Mus domesticus rutti, I. Communications between males. Animal Behaviour 40, 209-222.

Influence of new housing conditions on physiological and endocrine parameters in male adult guinea pigs

Year Published: 1990Animal Type: Guinea Pig, Rodent

Citation: Fenske, M. 1990. Influence of new housing conditions on physiological and endocrine parameters in male adult guinea pigs. Zoologische Jahrb?cher 94, 43-53.

Effect of in-house transport on murine plasma corticosterone concentration and blood lymphocyte population

A significant increase in plasma corticosterone concentration was seen in mice immediately after [in-house] transport. The normal circadian rhythm of plasma corticosterone concentration was altered for the subsequent 24-hour period. .. The .. acute increase in plasma corticosterone concentration was...

Year Published: 1990Animal Type: Mouse, Rodent

Citation: Drozdowicz, C. K., Bowman, T. A., Webb, M. L. et al. 1990. Effect of in-house transport on murine plasma corticosterone concentration and blood lymphocyte population. American Journal of Veterinary Research 51, 1841-1846.