Faculty of Life Sciences;
Kyoto Sangyo University;
Kyoto;
Japan;
National Institute of Agrobiological Sciences;
Tsukuba;
Japan;
School of Medicine;
St. Marianna University;
Kawasaki;
Japan;
Graduate School of Science and Engineering;
Yamagata University;
Yonezawa;
Japan;
Fast; Fourier; Transform; Rhythmic; Oscillations; Sus; scrofa; domesticus;