Rodent

Rasmussen, S., Miller, M., Filipski, S. B. et al. 2011. Cage change influences serum corticosterone and anxiety-like behaviors in the mouse. JAALAS 50(4), 479-483.

Environmental variables and husbandry practices can influence physiology and alter behavior in mice. Our study evaluated the effects of cage change on serum corticosterone levels and anxiety-like behaviors in C57BL/6 male mice. We examined the...

Reed, M., Goldsteen, D. L., Moore, E. et al. 2011. Environmental enrichment program in transgenic mouse breeding colonies. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 779 (Abstract #P160).

Results of studies on the benefits of environmental enrichment in group-housed mice and breeding colonies are often inconsistent and conflicting. After observing a significant drop in some of the genetically engineered mice (GEM) breeding colonies...

Scales, M., McDonald, K. M. 2011. Factors influencing the preferred nesting location of laboratory mice. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 773 (Abstract #P128).

Understanding the preferred nesting location of laboratory mice within the cage may serve as a useful, objective, behavioral assessment tool. To determine if caging ventilation rates influenced nesting location, we observed nesting site (front, middle...

Schipper, P., Nonkes, L. J., Karel, P. et al. 2011. Serotonin transporter genotype x construction stress interaction in rats. Behavioural Brain Research 223(1), 169-175.

A well-known example for gene x environment interactions in psychiatry is the one involving the low activity (s) allelic variant of the serotonin transporter (5-HTT) promoter polymorphism (5-HTTLPR) that in the context of stress increases...

Tosa, N., Yoshimatsu, K., Arikawa, J. 2011. Effect of environmental enrichment after the occurrence of wet bedding created by mice and abnormal fur in mice. American Association for Laboratory Animal Sc

In management of laboratory animals, wet bedding created by mice and abnormal fur in mice cause problems on housing, leading to negative effects both on the wellbeing of mice and on the validity of experimental...

Veillette, M., Reebs, S. G. 2011. Shelter choice by Syrian hamsters (Mesocricetus auratus) in the laboratory. Animal Welfare 20(4), 603-611.

The preference of Syrian hamsters (Mesocricetus auratus) for different in-cage shelters was tested. First, 15 males and 15 females were made to choose between a cage with a shelter and one without. Different shelters were...

Witt, S. L., Plews, C. A., Ruppert, G. et al. 2011. Nylon cylinder: Safe and cost-effective chewable rat enrichment. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 782 (Abstract #P174).

Offering enrichment to stimulate chewing behavior in rats has been found to promote psychologic and physiologic wellbeing. While there are many commercially produced nylon products available for use as chewable enrichment, these items are costly...

Abou-Ismail, U. A. 2011. Are the effects of enrichment due to the presence of multiple items or a particular item in the cages of laboratory rat? Applied Animal Behaviour Science 134(1-2), 72-82.

Although the effects of environmental enrichment on laboratory rodents have been extensively described, it is not yet known whether these effects were simply due to the presence of multiple items in the cage or due...

Akiyama, K., Sutoo, D. 2011. Effect of different frequencies of music on blood pressure regulation in spontaneously hypertensive rats. Neuroscience Letters 487(1), 58-60.

The effect of different frequencies of music on brain function was investigated through measurement of blood pressure in spontaneously hypertensive rats (SHR). Previous studies indicated that exposure to Mozart's music (K. 205) leads to increased...

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