CONSEQUENCES OF A SURGICAL-CORRECTION OF AN INSUFFICIENT DOSURE OF THE VULVA UPON GENITAL FLORA AND CONCEPTION RATES IN MARES

In this thesis the influence of pneumovagina on the microbiological co lonization of the genitaltract and their manifestation in cytological smears was examinated. For mares with poor vulval conformation a compa rison of the bacterial growth before and after plastic surgery of the Vulva and vestibulum was carried out, as well as the registration of c onception rates after operation and insemination. The biggest reductio n of the bacterial content in the reproductive tract was found between vestibulum and cranial section of the vagina. The increased number of contaminant bacteria in the cranial section of the vagina during abno rmal vulval conformation could be reduced significantly-by the plastic surgery of the vulva and vestibulum (p<0,05). Assuming that an 18-20 days pregnant uterus is free from a colonization with virulent bacteri a, a high significant reduction of the incrased number of contaminant bacteria in the uterus during vulval incompetence was found after surg ical correction (p < 0,01). In mares with poor convormation of the vul va, which had not been operated, the contamination of the repruductive tract had increased at the time of checkup in comparison to the first swab specimens, taken 18-20 days before. The share of mares with a ne gative bacteriological and positive cytological result was in case of vulval incompetemce twice as large as if they had a proper vulval conf ormation. A decrease of these latent infections was found after plasti c surgery of the vulva and vestibulum. From the operated mares a total of 72,9 % became pregnant.