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Investigation of Serum Oxidative Stress Index and Paraoxonase Activity Levels in Colostrum Period of Dairy Cows

Inan Kaya, Abdulsamed Kukurt, Mahmut Karapehlivan.

Abstract
In this study, the investigation of serum oxidative stress index (OSI), paraoxonase 1 (PON1) activity, total antioxidant (TAS) and oxidant status (TOS) levels in colostrum period of dairy cows was aimed. It was used sixteen Simmental cows for blood samples as follows: within 0, 1, 2, 3 and 4 days postpartum (group I, II, III, IV and V, respectively). Serum TAS, TOS and PON1 activity levels were determined by spectrophotometric methods. The results showed that oxidative stress in group IV was higher than group I and II. PON1 activity in group V was significantly higher than other groups. It was concluded that serum oxidative stress and PON1 activity levels in colostric period of dairy cows changed daily.

Key words: Dairy Cows, Colostrum, Oxidative Stress, Paraoxonase






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The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.