[Histological endometrial changes in cows with latent endometritis]

Histologic studies were carried out through biopsy of the endometrium of 61 barren cows. The animals showed no visible clinical signs of a disease of the genital organs. With the method used with cows affected with latent endometritis there were in 57.37 per cent of the cases degenerative and inflammatory changes (49.18 per cent of the diseased animals were with chronic catarrhal endometritis, and 8.19 per cent had atrophic endometritis), and 42.62 per cent showed no changes in the endometrium. The latent endometritis observed was manifested with degeneration and desquamation of the surface epithelium, and a moderate lymphocytic and plasmacellular infiltration along with necrobiosis of the uterine glands and proliferation and hyalinization of the connective tissue in the propria and the walls of the blood vessels.