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Related Experiment Videos

An actograph for small laboratory animals controlled by a personal computer.

T Ikeda1, T Abe, K Tashiro

  • 1Department of Biology, Nihon University of School of Medicine, Tokyo, Japan.

Jikken Dobutsu. Experimental Animals
|October 1, 1987
PubMed
Summary

A new actograph system accurately measures rodent drinking and feeding behaviors. Results show these activities predominantly occur during the dark cycle, with a positive correlation between them.

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Area of Science:

  • Animal Behavior
  • Physiology
  • Biotechnology

Background:

  • Accurate measurement of animal behavior is crucial for research.
  • Existing methods may lack precision or ease of use for specific activities like drinking and feeding.
  • Understanding circadian patterns in feeding and drinking is vital for physiological studies.

Purpose of the Study:

  • To develop and validate a novel actograph system for precise measurement of drinking and feeding activities in small laboratory animals.
  • To analyze the diurnal patterns of these behaviors using the developed system.
  • To investigate the relationship between drinking and feeding activities.

Main Methods:

  • Development of a personal computer-based actograph system for behavioral recording.

Related Experiment Videos

  • Utilizing the actograph to monitor drinking and feeding activities in male DBA/2J mice.
  • Implementing a 12-hour light/12-hour dark cycle for experimental conditions.

    • Main Results:

    • The actograph system successfully recorded drinking and feeding behaviors.
    • 84.0% of drinking activity and 79.6% of feeding activity occurred during the dark period.
    • Mice consumed approximately 5.7 ml of water per day, with a positive correlation observed between drinking and feeding activities.

    Conclusions:

    • The developed actograph system provides a reliable method for quantifying rodent feeding and drinking behaviors.
    • Small laboratory animals exhibit predominantly nocturnal patterns for both drinking and feeding.
    • A significant positive correlation exists between drinking and feeding activities in DBA/2J mice.