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Impact of endometritis on post-partum ovarian cyclicity in dairy cows

Mohammed, Z.A.; Mann, G.E.; Robinson, R.S.


Z.A. Mohammed

G.E. Mann


Endometritis in dairy cows is a major global issue and has been associated with a decrease in reproductive performance. The aim of this study was to quantify the effect of endometritis (as defined by the presence of any abnormal vaginal discharge after 21 days post-partum) on post-partum ovarian cyclicity in dairy cows. Milk progesterone analysis was used to monitor reproductive cyclicity in 170 dairy cows across three different commercial herds. Associations between the occurrence of endometritis and the incidence risk of a variety of atypical cycle profiles during the calving to conception period were investigated to establish the importance of endometritis on post-partum ovarian activity.

Endometritis increased the incidence odds of atypical ovarian profiles (P?[less than] 0.05) with prolonged luteal activity being the most affected (P?[less than] 0.05), but also showed prolonged time (3 days) to onset of luteal activity after parturition (P?[less than] 0.05). Using milk progesterone analysis, we found a relatively low incidence odds for reproductive cycle problems in healthy cows during the calving to conception period. However, the incidence odds of cycle problems, in particular prolonged luteal activity, were high in cows that had experienced endometritis, which would have significantly impaired reproductive function.


Mohammed, Z., Mann, G., & Robinson, R. (2019). Impact of endometritis on post-partum ovarian cyclicity in dairy cows. Veterinary Journal, 248, 8-13.

Journal Article Type Article
Acceptance Date Mar 25, 2019
Online Publication Date Mar 26, 2019
Publication Date 2019-06
Deposit Date Apr 12, 2019
Publicly Available Date Mar 27, 2020
Journal The Veterinary Journal
Print ISSN 1090-0233
Electronic ISSN 1532-2971
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 248
Pages 8-13
Keywords Dairy cows; Endometritis; Milk progesterone; Ovarian cyclicity
Public URL
Publisher URL
Additional Information This article is maintained by: Elsevier; Article Title: Impact of endometritis on post-partum ovarian cyclicity in dairy cows; Journal Title: The Veterinary Journal; CrossRef DOI link to publisher maintained version:; Content Type: article; Copyright: © 2019 Elsevier Ltd. All rights reserved.


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