Abstract
The electrorotation spectrum is a potential non-invasive method for monitoring the development of fish embryo, as well as, obtaining electric properties of each region in a fish embryo. In this study, the electrorotation spectrum of single Medaka egg (~φ1.0mm) was measured. The results suggested that during the developing stage of Medaka egg embryo between 20 and 30 is detectable by monitoring the specific peak frequency of electrorotation spectrum. The electric properties of each region in Medaka egg were calculated by modeling a single Medaka egg as an effective dielectric moment which is composed of 3 layered spherical shells.
