Diagnosis of subclinical endometritis during postpartum period on subsequent pregnancy in small, medium and large scale dairy farms in and around Gondar, Ethiopia

摘要

During the study period 147 apparently healthy 3rd trimester pregnant cows were selected in smallholder, medium and large scale dairy farms in and around Gondar, North Western Ethiopia from January 2015 to September 2017. After calving, endometrial samples were collected from the uterus of apparently normal cows by using uterine lavage technique on postpartum dairy cows from 40-60 days. Collected samples were centrifuged and a drop of sediment was streaked onto a clean microscopic slide and stained with giemsa. The percentage of polymorphonuclear cells (neutrophils) was calculated. It was found that increase in the number of neutrophils correlated with decrease in pregnancy. In conclusion, subclinical endometritis diagnosed by endometrial cytology was associated with reduced rate of pregnancy.