<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The aim of the study was to evaluate selected parameters representing reproductive system conditions in cows suffering from left-sided displacement of the abomasum (LDA). Eighty Holstein- Friesian cows were divided into control (n=40) and LDA (n=40) groups. Haematological and biochemical evaluations were performed in the control group and in cows with LDA before and after surgical treatment. Cytological and ultrasound examinations of the uterus were performed at 21 (baseline), 35 and 63 days after parturition. In the LDA group, significantly decreased concentrations of calcium, magnesium, phosphorus, copper, potassium, glucose and total cholesterol were stated, while aspartate aminotransferase activity, white blood cell count, erythrocyte count, haematocrit, haemoglobin content and concentration of β-hydroxybutyrate, free fatty acids and bilirubin were increased (all P&lt;0.05). Percentage of neutrophils in the uterus and the uterus diameter were increased in the LDA group at the baseline and at 35 days after parturition (P&lt;0.001). The neutrophil percentage was also increased at 63 days after parturition in the LDA group (P&lt;0.001). Number of days to first oestrus, number of services per conception and calving-to-conception interval were higher in the LDA group (P&lt;0.001). This study has shown reproductive system changes and impaired fertility in dairy cows as the consequence of LDA occurrence. Thus, LDA treatment in cows should be combined with diagnostic evaluation of the uterus and reproductive system to improve reproductive performance. As indicated in the cytological examination, a subclinical inflammatory process may last even 60 days after parturition, leading to substantial impairment of reproductive function in dairy cows.</p></abstract>

The aim of the study was to evaluate selected parameters representing reproductive system conditions in cows suffering from left-sided displacement of the abomasum (LDA). Eighty Holstein- Friesian cows were divided into control (n=40) and LDA (n=40) groups. Haematological and biochemical evaluations were performed in the control group and in cows with LDA before and after surgical treatment. Cytological and ultrasound examinations of the uterus were performed at 21 (baseline), 35 and 63 days after parturition. In the LDA group, significantly decreased concentrations of calcium, magnesium, phosphorus, copper, potassium, glucose and total cholesterol were stated, while aspartate aminotransferase activity, white blood cell count, erythrocyte count, haematocrit, haemoglobin content and concentration of β-hydroxybutyrate, free fatty acids and bilirubin were increased (all P<0.05). Percentage of neutrophils in the uterus and the uterus diameter were increased in the LDA group at the baseline and at 35 days after parturition (P<0.001). The neutrophil percentage was also increased at 63 days after parturition in the LDA group (P<0.001). Number of days to first oestrus, number of services per conception and calving-to-conception interval were higher in the LDA group (P<0.001). This study has shown reproductive system changes and impaired fertility in dairy cows as the consequence of LDA occurrence. Thus, LDA treatment in cows should be combined with diagnostic evaluation of the uterus and reproductive system to improve reproductive performance. As indicated in the cytological examination, a subclinical inflammatory process may last even 60 days after parturition, leading to substantial impairment of reproductive function in dairy cows.

Reproductive System Condition in Dairy Cows with Left-Sided Displacement of the Abomasums

Department and Clinic of Internal Medicine, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland

Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-950 Lublin, Poland

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The aim of the study was to evaluate selected parameters representing reproductive system conditions in cows suffering from left-sided displacement of the...

Reproductive System Condition in Dairy Cows with Left-Sided Displacement of the Abomasums

Published Online: Apr 23, 2015

Page range: 359 - 371

Received: Aug 24, 2014

Accepted: Dec 10, 2014

DOI: https://doi.org/10.1515/aoas-2015-0009

Keywords
cow, left-sided displacement of the abomasum, uterus, fertility

© by Piotr Brodzki

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Reproductive System Condition in Dairy Cows with Left-Sided Displacement of the Abomasums

Published Online: Apr 23, 2015

Page range: 359 - 371

Received: Aug 24, 2014

Accepted: Dec 10, 2014

DOI: https://doi.org/10.1515/aoas-2015-0009

Keywordscow, left-sided displacement of the abomasum, uterus, fertility

© by Piotr Brodzki

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
cow, left-sided displacement of the abomasum, uterus, fertility