[Cytological research on the vaginal mucosa in cows with estrous cycle disorders]

Cytologic investigations were carried out of a total of 140 cows with regard to the vaginal mucosa in the event of disturbed functions in the course of the sexual cycle: hypofunction of the ovaries (71 animals), persisting yellow bodies (34 animals), and estral and postestral cases of metrorrhagia (35 animals). Chamov's trichromatic method was employed to stain the smears and Véznik's cytogramme method--to carry out the recordings. It was found that in the case of ovarian hypofunction the mixed type of cell pictures prevailed (47.8 per cent), followed by the estrogenic type (39.4 per cent), and the progesterone type (12.6 per cent). In the case of persisting corpora lutea the mixed type of cell picture prevailed too--64.7 per cent, while the estrogenic and progesterone types were 17.6 per cent. Featuring in the postestral and estral metrorrhagia was the estrogenic type of cell picture (51.4 per cent), while the mixed type accounted for 45.7 per cent of the cases, and the progesterone one--for 2.8 per cent. It is suggested to use the cytovaginal method in combination with the routinely employed clinical and laboratory tests for the overall evaluation of the condition of the genital system in cows.