Association of oxidative stress biomarkers and clinical mastitis incidence in dairy cows during the periparturient period
Article Category: Short Communication
Published Online: Aug 12, 2020
Page range: 421 - 425
Received: Jan 19, 2020
Accepted: Jul 30, 2020
DOI: https://doi.org/10.2478/jvetres-2020-0053
Keywords
© 2020 G.P. Laliotis et al. published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Introduction
The aim of this study was to determine changes of reactive oxygen species (ROS), serum antioxidant capacity (SAC), oxidative stress index (OSi), and
Material and Methods
Blood samples from 110 dairy cows from two commercial farms were obtained at dry-off, calving, and 30 days post-partum. Healthy cows formed group A (n = 90) and mastitic cows B (n = 20). Blood serum was obtained by centrifugation, and the aforementioned parameters were determined. A general linear model was used for analysing the associations among the determined blood parameters, the health of the animals’ udder, and the sampling time.
Results
ROS and OSi values were higher (P < 0.001) by a respective 14% and 26%, and SAC values lower (P < 0.001) by 10% in group B than in group A at calving. ROC curve analysis revealed that all determined parameters at calving and
Conclusion
This information provides a tool for early identification of cows at high risk of developing mastitis, allowing the implementation of intervention strategies.