Rodent

Noise in a laboratory animal facility from the human and mouse perspectives

The current study was performed to understand the level of sound produced by ventilated racks, animal transfer stations, and construction equipment that mice in ventilated cages hear relative to what humans would hear in the same environment. Although the ventilated...

Year Published: 2010Topics: Husbandry & ManagementAnimal Type: Mouse, Rodent

Citation: Reynolds, R. P., Kinard, W. L., Degraff, J. J. et al. 2010. Noise in a laboratory animal facility from the human and mouse perspectives. JAALAS 49(5), 592-597.

Effects of access to voluntary wheel running on the development of stereotypy

Stereotyped motor behaviors are a common consequence of environmental restriction in a wide variety of species. Although environmental enrichment has been shown to substantially reduce stereotypy levels, the various components of enrichment have not been evaluated independently to determine which...

Year Published: 2010Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Mouse, Rodent

Citation: Pawlowicz, A., Demner, A., Lewis, M. H. 2010. Effects of access to voluntary wheel running on the development of stereotypy. Behavioural Processes 83(3), 242-246.

Effects of specific environmental enrichment contributing to litter size and attrition rate of TRP1/TGfβ transgenic mice in a breeding colony

In previous studies of environmental enrichment of mice it has been determined that certain types of mice are affected by manipulation of their living environment. Some have effects on cognitive memory and some affect the developmental nurturing on second and...

Year Published: 2010Topics: Environmental Enrichment, Rearing & Weaning, ReproductionAnimal Type: Mouse, Rodent

Citation: Oteham, C. P. 2010. Effects of specific environmental enrichment contributing to litter size and attrition rate of TRP1/TGfβ transgenic mice in a breeding colony. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 698 (Abstract #P51).

Long-term effects of housing and enrichment on affective behavior and responsiveness of Sprague-Dawley rats

Most rodent studies evaluate different caging paradigms over short periods of time, which may not be realistic for typical colony settings. Inappropriate housing may lead to boredom, aggression, stereotypies, and altered metabolism, which in turn may affect experimental responses. In...

Year Published: 2010Topics: Abnormal/Problematic Behavior, Environmental Enrichment, Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Turner, P. V., Ovari, J., Pinelli, C. et al. 2010. Long-term effects of housing and enrichment on affective behavior and responsiveness of Sprague-Dawley rats. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 658-659 (Abstract #PS12).

Middle-aged mice with enrichment-resistant stereotypic behaviour show reduced motivation for enrichment

For captive animals, living in barren conditions leads to stereotypic behaviour that is hard to alleviate using environmental enrichment. This resistance to enrichment is often explained via mechanisms that decouple abnormal behaviour from current welfare, such as "establishment": a hypothetical...

Year Published: 2010Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Mouse, Rodent

Citation: Tilly, S.-L. C., Dallaire, J., Mason, G. J. 2010. Middle-aged mice with enrichment-resistant stereotypic behaviour show reduced motivation for enrichment. Animal Behaviour 80(3), 363-373.

Effects of increased interaction between research rodents and their handlers

We conclude that handling experimental animals more often than only at the time their cage is changes is beneficial.

Year Published: 2010Topics: Handling, Human-Animal InteractionAnimal Type: Mouse, Rat, Rodent

Citation: Stewart, K. 2010. Effects of increased interaction between research rodents and their handlers. Animal Welfare Institute (AWI) Quarterly 59(1) Winter, 28-29.

Clinical biochemistry parameters in C57BL/6J mice after blood collection from the submandibular vein and retroorbital plexus

Collection of blood from the submandibular vein allows simple and rapid processing of many animals without anesthesia and facilitates rapid recovery with no signs of pain and discomfort in the mice. Here we compared the submandibular vein and retroorbital plexus...

Year Published: 2010Topics: Biological Sampling & Physiological MeasurementAnimal Type: Mouse, Rodent

Citation: Fernandez, I., Pena, A., Del Teso, N. et al. 2010. Clinical biochemistry parameters in C57BL/6J mice after blood collection from the submandibular vein and retroorbital plexus. JAALAS 49(2), 202-206.

Preference of Syrian hamsters to nest in old versus new bedding

This study tested whether Syrian hamsters (Mesocricetus auratus) have an aversion to old bedding (up to 14 days) by offering them the option to nest in a new cage. A secondary goal was to assess the relative value of shelters...

Year Published: 2010Topics: Environmental Enrichment, Housing, Husbandry & ManagementAnimal Type: Hamster, Rodent

Citation: Veillette, M., Reebs, S. G. 2010. Preference of Syrian hamsters to nest in old versus new bedding. Applied Animal Behaviour Science 125(3-4), 189-194.

Evaluation of nesting materials for use in nude mouse colonies

Nesting material has been reported to be beneficial to mice by providing environmental enrichment as well as a means of thermoregulation. Cotton nesting material has been reported to cause conjunctivitis in athymic nude mice. We evaluated 3 different paper-based nesting...

Year Published: 2011Topics: Environmental Enrichment, Housing, Husbandry & ManagementAnimal Type: Mouse, Rodent

Citation: Breegi, S. 2011. Evaluation of nesting materials for use in nude mouse colonies. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 782 (Abstract #P171).

Working with what you’ve got: Changes in thermal preference and behavior in mice with or without nest material

In laboratories mice are typically housed at ambient temperatures (Ta) of 20–24 °C, which are below their average preferred Ta of ≈30 °C. Adjusting laboratory Ta is not a solution because preferences differ depending on activity, time of the day,...

Year Published: 2011Topics: Environmental Enrichment, Housing, Husbandry & ManagementAnimal Type: Mouse, Rodent

Citation: Gaskill, B. N., Rohr, S., Lucas, J. R. et al. 2011. Working with what you've got: Changes in thermal preference and behavior in mice with or without nest material. Journal of Thermal Biology. 36(3), 193-199.