Rodent

The effects of routine animal husbandry and experimental procedures upon physiological parameters of rats

Conducting these same procedures in an animal's home room did not alter the monitored parameters.

Year Published: 1997Animal Type: Rat, Rodent

Citation: Doerning, B. J., Cruze, C. 1997. The effects of routine animal husbandry and experimental procedures upon physiological parameters of rats. American Association for Laboratory Animal Science [AALAS] Meeting Abstracts and Scientific Papers, 1-2 (Abstract).

Environmental enrichment: does it reduce barbering in mice?

One of the problems in maintaining group-housed mice is barbering one or more mice chewing (barbering) the fur and whiskers of other mice. A group of 300 mice of both sexes, which are being studied over their lifetime, were housed...

Year Published: 1997Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Mouse, Rodent

Citation: DeLuca, A. M. 1997. Environmental enrichment: does it reduce barbering in mice? Animal Welfare Information Center (AWIC) Newsletter 8(2), 7-8.

Preference for familiar humans by rats

24 of the 26 subjects correctly chose the handler with whom they had previously interacted [for 10 min]. Rats prefer contact with an individual with whom they have safely interacted versus a strange individual. Their preference for a familiar human...

Year Published: 1997Animal Type: Rat, Rodent

Citation: Davis, H., Taylor, A., Norris, C. 1997. Preference for familiar humans by rats. Psychological Bulletin Review 4, 118-120.

Rodent enrichment devices – evaluation of preference and efficacy

The mice preferred cotton nestles and cardboard rolls over wooden block and commercial toys. When animals wearing wound clips were exposed to the preferred enrichment, premature wound clip removal decreased, suggesting a positive effect of enrichment on the psychological well-being...

Year Published: 1997Topics: Environmental EnrichmentAnimal Type: Mouse, Rodent

Citation: Coviello-Mclaughlin, G. M., Starr, S. J. 1997. Rodent enrichment devices - evaluation of preference and efficacy . Contemporary Topics in Laboratory Animal Science 36(6), 66-68.

Transgenic Animals

The creation of transgenic animals is resulting in a shift from the use of higher order species to lower order species, and is also affecting the numbers of animals used. An example of the replacement of higher species by lower...

Year Published: 1997Animal Type: All/General, Mouse, Rodent

Citation: Canadian Council on Animal Care [CCAC] 1997. Transgenic Animals. web site From CCAC Resource Supplement, Spring/Summer 1997.

Parallel strain-dependent susceptibility to environmentally-induced stereotypies and stress-induced behavioral sensitization in mice

Stereotypy is likely to be associated with differing stress responses between individuals.

Year Published: 1997Animal Type: Mouse, Rodent

Citation: Cabib, S., Bonaventura, N. 1997. Parallel strain-dependent susceptibility to environmentally-induced stereotypies and stress-induced behavioral sensitization in mice. Physiology and Behavior 61, 499-506.

Reduction of fever by housing in small cages

At the beginning of the experiments individual hamsters housed in small standard cages had higher temperatures compared with hamsters housed in larger cages. This was taken as an indication of a higher stress level in the small caging environment. Hamsters...

Year Published: 1997Animal Type: Hamster, Rodent

Citation: Kuhnen, G. 1997. Reduction of fever by housing in small cages. Laboratory Animals 32, 42-45.

The effect of cage size and environmental enrichment on the generation of fever in golden hamster

The results indicate that housing in small cages induces chronic stress which obviously affects thermoregulation

Year Published: 1997Topics: Environmental EnrichmentAnimal Type: Hamster, Rodent

Citation: Kuhnen, G. 1997. The effect of cage size and environmental enrichment on the generation of fever in golden hamster. Annals of the New York Academy of Sciences 813, 398-400.

More hippocampal neurons in adult mice living in an enriched environment

Mice reared in an environment enriched with running wheels, tunnels and toys possess more hippocampal neurons than litter mates reared in barren standard cages. It is likely that these extra neurons contribute to the enhanced performance in learning tasks showed...

Year Published: 1997Animal Type: Mouse, Rodent

Citation: Kempermann, G., Kuh, H. G., Gage, F. H. 1997. More hippocampal neurons in adult mice living in an enriched environment. Nature 386, 493-495.

Housing and welfare in laboratory rats: Welfare implications of isolation and social contact among caged males

Singly housed males showed reduced activity and a greater incidence of self-directed behaviors, especially tail manipulation and self-grooming than males housed in small groups of three. They also performed behaviors apparently related to escape or seeking social information. ... Exposure...

Year Published: 1997Animal Type: Rat, Rodent

Citation: Hurst, J. L., Barnard, C. J., Nevison, C. M. et al. 1997. Housing and welfare in laboratory rats: Welfare implications of isolation and social contact among caged males. Animal Welfare 6, 327-347.