| Abstrakt: |
During the oestrus of the sow it has been demonstrated that the pH intra vaginamdecreases rapidly into the acid range (Schilling & Röstel, 1964). The minimal pH of 6·35 coincided with full oestrus and the time of mating. These findings have now been obtained in cows (Zust, 1966; Schilling & Zust, 1967). The most important results of these investigations are briefly dealt with in the following text.In cows, the pH was measured intra vaginamusing a pocket-type pH meter. An extra long electrode was moistened with distilled water immediately before the measurement was made. A Polanski speculum was used to locate exactly the measurement points within the vagina. In accordance with Täubrich (1959) a close relationship was found between these points and the pH: the lowest values |
