Rat

The visible burrow system as a model of chronic social stress: Behavioural and neuroendocrine correlates

In mixed-sex rat groups maintained in visible burrow systems (VBS), consistent asymmetries in offensive and defensive behaviors of male dyads are associated with the development of dominance hierarchies. Subordinate males are characterized by particular wound patterns, severe weight loss, and...

Year Published: 1995Animal Type: Rat, Rodent

Citation: Blanchard, D. C., Spencer, R., Weiss, S. M. et al. 1995. The visible burrow system as a model of chronic social stress: Behavioural and neuroendocrine correlates. Psychoneuroendocrinology 20, 117-134.

An investigation into the effects of solid or grid cage flooring on the welfare of laboratory rats

Preference testing revealed that rats chose to dwell on solid floors rather than grids, regardless of previous housing experience. This preference for solid floors was particularly marked (88%) when the animals were resting and much less during activity (55.4%). Since...

Year Published: 1995Animal Type: Rat, Rodent

Citation: Manser, C. E., Morris, T. H., Broom, D. M. 1995. An investigation into the effects of solid or grid cage flooring on the welfare of laboratory rats. Laboratory Animals 29, 353-363.

Effects of gnawing material, group size and cage level in rack on Wistar rats

Han:Wist rats were housed after weaning in groups of one, two, three or four in stainless steel cages with aspen chip bedding, with or without wooden gnawing blocks. The use of the blocks was assessed by Video recording and by...

Year Published: 1995Topics: Environmental Enrichment, Housing, Husbandry & Management, Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Kaliste-Korhonen, E., Eskola, S., Rekilä, T. et al. 1995. Effects of gnawing material, group size and cage level in rack on Wistar rats. Scandinavian Journal of Laboratory Animal Science 22(4), 291-299.

Gentled and nonhandled Wistar rats in a mildly novel open-field situation

Open-field behaviour of individually gentled and nonhandled adult male Wistar rats was studied in a mildly novel test situation. The gentled rats were more active and showed fewer signs of fear on the first trial. This difference gradually descended on...

Year Published: 1995Topics: Emotion, Pain, & Sentience, Handling, Human-Animal InteractionAnimal Type: Rat, Rodent

Citation: Hirsjärvi, P. A., Väliaho, T. 1995. Gentled and nonhandled Wistar rats in a mildly novel open-field situation. Scandinavian Journal of Laboratory Animal Science 22(3), 265-269.

Influence of an enriched environment and cortical grafting on functional outcome in brain infarcts of adult rats

The right middle cerebral artery (MCA) was ligated in 34 inbred, spontaneously hypertensive male rats, which were then randomly divided into three groups.Groups A and B were transferred to an enriched environment, i.e., a large cage with opportunities for various...

Year Published: 1995Animal Type: Rat, Rodent

Citation: Grabowski, M., Sorensen, J. C., Mattsson, B. et al. 1995. Influence of an enriched environment and cortical grafting on functional outcome in brain infarcts of adult rats. Experimental Neurology 133, 96-102.

Circadian and short-term variabilities in blood pressure and heart rate measured by telemety in rabbits and rats

Blood pressure (BP) and heart rate (HR) were measured by telemetry in conscious unrestrained rabbits to clarify the profile of their variabilities. The variabilities were assessed for two periods, 24 h (circadian rhythm) and 1 h (short-term variability), and compared...

Year Published: 1995Topics: Biological Sampling & Physiological MeasurementAnimal Type: Rabbit, Rat, Rodent

Citation: Sato, K., Chatani, F., Sato, S. 1995. Circadian and short-term variabilities in blood pressure and heart rate measured by telemety in rabbits and rats. Journal of the Autonomous Nervous System 54, 235-246.

Environment influences functional outcome of cerebral infarction in rats

We hypothesize that an enriched environment may stimulate mechanisms that enhance brain plasticity after focal brain ischemia.

Year Published: 1995Animal Type: Rat, Rodent

Citation: Ohlsson, A. L., Johansson, B. B. 1995. Environment influences functional outcome of cerebral infarction in rats. Stroke 26(4), 644-649.

Restraint and Handling of Wild and Domestic Animals (Second Edition)

Photographic documentation of enforced restraint and handling techniques.

Year Published: 1995Animal Type: All/General, Amphibian, Baboon, Bird, Capuchin, Cat, Cattle, Chimpanzee, Chinchilla, Crocodile & Alligator, Dog, Equine, Fish, Gerbil, Gibbon, Goat, Guinea Pig, Hamster, Lemur, Lizard, Macaque, Marine Mammal, Marmoset, Mole Rat, Mouse, Nonhuman Primate, Other Animal, Other Nonhuman Primate, Other Rodent, Owl Monkey, Pig, Rabbit, Rat, Reptile, Rodent, Sheep, Snake, Squirrel Monkey, Turtle & Tortoise, Vervet (African Green Monkey)

Citation: Fowler, M. E. 1995. Restraint and Handling of Wild and Domestic Animals (Second Edition). Iowa State University Press, Ames, IA.

The effect of housing conditions and simple experimental procedures upon corticosterone level in the plasma of rats

Non-specific stimuli such as environmental change, noise, handling, weighing and intraperitoneal injections all produce marked increases in plasma corticosterone levels which remain supernormal for at least 2 hr.

Year Published: 1996Animal Type: Rat, Rodent

Citation: Barrett, A. M., Stockham, M. A. 1996. The effect of housing conditions and simple experimental procedures upon corticosterone level in the plasma of rats. Journal of Endocrinology 26, 97-105.

Impact of differential housing on humoral immunity following exposure to an acute stressor in rats

Housing rats in groups seems to be less stressful for the animals than housing them alone.

Year Published: 1995Animal Type: Rat, Rodent

Citation: Baldwin, D. R., Wilcox, Z. C., Baylosis, R. C. 1995. Impact of differential housing on humoral immunity following exposure to an acute stressor in rats. Physiology and Behavior 57, 649-653.