Effect of housing rats in dim light or long nights on heart rate.

@article{Azar2008EffectOH,
  title={Effect of housing rats in dim light or long nights on heart rate.},
  author={Toni A Azar and Jody L Sharp and David E. M. Lawson},
  journal={Journal of the American Association for Laboratory Animal Science : JAALAS},
  year={2008},
  volume={47 4},
  pages={25-34}
}
Housing laboratory animals under lighting conditions that more closely mimic the natural environment may improve their wellbeing. This study examined the effects of dim light or a long-night photocycle on resting heart rate (HR) of rats and their HR responses to acute procedures. Male and female Sprague-Dawley (SD) and spontaneously hypertensive (SHR) rats, instrumented with radiotelemetry transmitters and housed individually under a 12:12-h light:dark photocycle with 10 lx illumination (dim… CONTINUE READING