MECHANICAL AND ELECTRICAL ACTIVITIES OF THE FEMALE BOVINE GENITAL TRACT IN VIVO

Abstract

The mechanical activity of the female bovine genital tract, as measured by a Statham transducer, was greatest during estrus and declined during non-estrus. With advancing pregnancy the frequency of the contractions gradually decreased and the amplitude increased.Measurement of electrical activity, by attaching electrodes to various parts of the body and recording the bioelectric potentials of the tract, showed a close relationship to the mechanical activity when both were recorded simultaneously in vivo. In both cases recordings were made on a GME M5P polygraph.Oxytocin enhanced both the electrical and the mechanical activities of the tract.