| 摘要 |
PROBLEM TO BE SOLVED: To provide a recording medium holding recorded ultrasonic sound capable of attracting rat, etc., by using ultrasonic sound used by rodents such as rat for communication, and provide an attracting device for rodents such as rat, a rodent capturing device and a capturing method capable of attracting and capturing rodents such as rat by using the recording medium. SOLUTION: The recording medium holds recorded ultrasonic sound generated by rodents such as rat and capable of inducing maternal behavior. The ultrasonic sound recorded on the recording medium is played back to reproduce the ultrasonic sound and attract rodents such as rat. The sample of the ultrasonic sound has a frequency range of from about 45 kHz to about 55 kHz and is collected from a baby mouse of 3-7 days old, preferably 3-5 days old. COPYRIGHT: (C)2007,JPO&INPIT
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