Reproduction Abstracts

Introduction: In dairy cows, post-partum endometritis caused by Gram negative bacteria (e.g. E. coli) adversely affects follicular function and is associated with subfertility. However, there is limited information of the effects of endometritis on the corpus luteum (CL). Recently, we showed that LPS dose-dependently decreased luteal endothelial cell (EC) network formation in vitro. The hypothesis tested was that CL from cows with endometritis would have reduced vascu...

In dairy cows, post-partum uterine inflammation caused by Gram negative bacteria (e.g. E. coli) suppresses follicular function and reduces fertility. LPS is an endotoxin that is present on outer membrane of Gram-negative bacteria. Furthermore, LPS is detected in follicular fluid (0.04–0.88 μg/ml) of cows with endometritis. This study tested the hypothesis that LPS would decrease the formation of luteal endothelial cell (EC) network and progesterone ...

Dairy cow fertility has declined over the past 50 years coinciding with increased milk production. Uterine health is an important factor with endometritis prevalent in high-yielding dairy cows. This study assessed the association between uterine disease on reproductive performance in 78 commercial UK dairy herds. Data from 59 118 lactations (n=29 157 cows) was collected from 2000to 2009 and included presence of uterine disease, calving date, and insemination informati...