Abstract

The aim of this investigation was to determine the influence of oxidative stress upon general stress in dairy cows on parturition and whether the indicators of stress can be reduced by selenium (Se) supplementation.

A total of 36 animals were divided into 3 groups 21 days prepartum and treated with a single-term intramuscular supplement of sodium selenite: Control group - 0 mg; group Se10 - 10 mg; group Se20 - 20 mg.

Se supplementation significantly raised blood Se content and glutathione peroxidase (GPx) activity in groups Se10 and Se20, compared to Control, although there was no marked difference between supplemented groups. Plasma malondialdehyde (MDA) and cortisol concentrations were significantly reduced in supplemented groups Se10 and Se20, compared to Control. A negative correlation was detected between blood GPx activity and plasma MDA, while a positive correlation was determined between plasma MDA and cortisol concentrations.

These results indicate that prepartum Se supplementation can be utilized for a partial relief of stress in cows during labor by augmenting the antioxidative action of GPx.

Details

Title
Supplemental Selenium Reduces the Levels of Biomarkers of Oxidative and General Stress in Peripartum Dairy Cows / Dodati Selen Snižava Nivoe Biomarkera Oksidativnog I Opšteg Stresa Kod Mlečnih Krava U Peripartalnom Periodu
Author
Jovanović, B Ivan 1 ; Miljan Veličković 2 ; Milanović, Svetlana 1 ; Olivera Valčić 1 ; Gvozdić, Dragan 3 ; Vranješ-Đurić, Sanja 4 

 University of Belgrade – Faculty of Veterinary Medicine, Department of Physiology and Biochemistry, Belgrade, Serbia 
 Veterinary Clinic „Velvet”, Knjaževac, Serbia 
 University of Belgrade – Faculty of Veterinary Medicine, Department of Pathophysiology, Belgrade, Serbia 
 Institut for Nuclear Sciences „Vinča”, Laboratory for Radioisotopes, Belgrade, Serbia 
Pages
191-201
Publication year
2015
Publication date
2015
Publisher
De Gruyter Poland
ISSN
05678315
e-ISSN
18207448
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3155979529
Copyright
© 2015. This work is published under http://creativecommons.org/licenses/by-nc-nd/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.