Ovulation period detecting apparatus and ovulation period detecting method for mammals

摘要

An ovulation period detecting apparatus for mammals is provided comprising: a bar-shaped detecting unit to be inserted in the vagina of a mammal; electrodes arranged on the bar-shaped detecting unit so as to be in contact with the vaginal mucous membrane when the bar-shaped detecting unit is inserted in the vagina of the mammal; pressure detecting means for detecting a pressure at which the electrodes are pressed against the vagina of the mammal; impedance detecting means for applying a voltage across the electrodes and detecting the value of impedance between the electrodes when the pressure detecting means detect a pressure equal to or greater than a prescribed pressure over a prescribed time; and data outputting means for outputting the value of the impedance detected by the impedance detecting means. By means of this ovulation period detecting apparatus, the impedance on the vaginal mucous membrane of a mammal is detected by pressing the electrodes against the vagina of the mammal at a required pressure over a prescribed time to actuate the impedance detecting means for detection. This assures the electrodes to be pressed against the vaginal mucous membrane properly, eliminating the possible intervening of mucus and the like between the electrodes and the vaginal mucous membrane. Thereby, it becomes possible to accurately detect the impedance, based on which semen deposition timings in artificial insemination are determined precisely.