ENDOMETRIAL BIOPSY IN INFERTILE COWS

Endometrial samples from 39 clinical cases and 18 slaughtered cows wer e collected by Nielson's biopsy cathetor. These samples revealed acute and sub-acute inflammation of uterus in 90 and 10% samples, respectiv ely, in repeaters with normal discharge, whereas in cows with abnormal discharge the corresponding percentage was 10 and 40 with 50% showing chronic form of endometritis. Occurrence of acute, sub-acute and chro nic forms of endometritis in 18 sterile cows was 22.22, 27.78 and 50.0 0%, whereas all the control animals did not show any inflammatory chan ges in the biopsy materials.