©2023-2035 All Rights Reserved. Online Journal of Veterinary Research.  You may not store these pages in any form except for your own personal use. All other usage or distribution is illegal under international copyright treaties. Permission to use any of these pages in any other way besides the before mentioned must be gained in writing from the publisher. This article is exclusively copyrighted in its entirety to onlinejournals@gmail.com publications.. This article may be copied once but may not be, reproduced or  re-transmitted without the express permission of the editors. Linking: To link to this page or any pages linking to this page you must link directly to this page only here rather than put up your own page.



Online Journal of Veterinary Research©

(Including Medical and Laboratory Research)

Established 1994

ISSN 1328-925X


Volume 28(4): 233-239, 2024.

Effect of oxidant stress on bovine milk yields.


Löhrke B1, T Viergutz T 1, Kanitz W1, Göllnitz K1, Becker F1, Hurtienne A2, Schweigert FJ 2


1FBN Research Institute for the Biology of Farm Animals Dummerstorf, 2Institute of Nutritional Science, University of Potsdam, Potsdam-Rehbrücke, Germany




Löhrke B, Viergutz T, Kanitz W, Göllnitz K, Becker F, Hurtienne A, Schweigert FJ., Effect of oxidant stress on bovine milk yields, Onl J Vet Res, 28(4): 233-239, 2024.  Oxidant stress may occur during early lactation due to enhanced oxidative metabolism for production of milk. We determined hydroperoxides (HP) by oxidation of Fe2+ in lipid extracts from low density lipoproteins (LDL) in serum from 8 Holstein cows in 1st  and 5 cows in 2nd parity during lactation stage of 53 ± 1.4 days postpartum yielding serum HP 0.1 - 2.1 µM. We found correlation between serum HP and daily milk yield (r = 0.86, P = 0.0004) and milk energy output (r = 0.64, P = 0.04). Findings suggest endogenous oxidation of LDL in dairy cows increased with higher productivity.


KEYWORDS: Dairy cow, hydroperoxides, low density lipoprotein.