MODEL MK-12 RAT VAGINAL IMPEDANCE CHECKER The best method to know proestrus stage Powerful tool for the improvement of reproduction efficiency Simple operation Battery-operated MK-12 Rat Vaginal Impedance Checker has been designed to obtain a precise information on optimum day for mating during estrous cycle in the rats. The electrical impedance of the epithelial cell layer of vaginal mucosa is measured at the frequency of 1 kHz by insertion of the probe into vagina. In the proestrus stage significantly high impedance is produced compared to that in the other stages of the estrous cycle. 3 Kohm of impedance can be considered a standard indicating proestrus stage. Measuring range is 0 - 19.9Kohm. The conventional method known as vaginal smear method takes troublesome procedures such as taking smear, drying, dying and check-up using microscope. It really takes skill as well as time and labor. Rat Vaginal Impedance Checker is a time & labor saving device on top of high reliability. Further, operation is so simple that even inexperienced personnel can easily use it. NOTE: This product has been developed in cooperation with Chugai Pharmaceutical Co., Ltd.

△: Changes of EIV during estrus cycle in the rats. EIV shows high value at proestrus stage and periodical alteration concurrently with estrus cycle M. Koto (1987), Exp. Anim., 36(2), 195-198

The Standard System Includes:! REFERENCES: Bartos, L.(1975). Physiol. Bohemoslov., 24,427. Bartos, L.(1977). Lab. Anim., 11,53-55 Bartos, L.(1977). Lab. Anim., 11,57-58 M..Koto(1987). Exp. Anim., 36(2),151-156. M..Koto(1987). Exp. Anim., 36(2),195-198 Teradach,C.(1982). Sci. Tech. Anim. Lab.,7,49-84 The continuous use of the MK-12 Rat Vaginal Impedance Checker does not affect pregnancy rate or other reproduction achievements. IMPORTANT NOTICE: The MK-12 has been developed exclusively for rats. A mouse probe is available upon request, but test results cannot be guaranteed. Specifications are subject...