[Microscopic changes in intercaruncular endometrium and ovarian follicles in cows 35 days after parturition]

Abstract

Surface epithelium of intercaruncular endometrium in pluriparous cows, crossbreds of Bohemian Pied cattle with Holstein-Friesian cattle, was not coherent until day 15 after parturition, with a variable height of cells (16-64 microns). Oedematous nature of lamina propria was subsiding gradually. From day 15 to day 20 after parturition the cell height of coherent surface epithelium and uterine glands became equable and stabilized (16-32 microns), and the lamina propria assumed its cellular nature with marked infiltration of polymorphonuclears and lymphocytes. Noticeable symptoms of atresia were demonstrated to occur more frequently in ovaries in the follicular population until day 15 after parturition. From day 10 to day 25 after parturition an increasing occurrence of luteinized follicles with diameters of maximally 3 mm was demonstrated.