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Cow, Oxidative stress, Repeat breeder


In this study, oxidant and antioxidant status in pregnant and repeat breeder (RB) cows were evaluated. For this purpose, approximately 10 mL of blood was taken into Li-Heparin tubes from the V. jugularis of a total of 68 Holstein breed cows, consisting of two groups: pregnant (n=34) and repeat breeder (n=34), less than 10 years old, inseminated 3 or more times. Malondialdehyde (MDA) levels, superoxide dismutase (SOD) activities, total oxidant capacity (TOC), total antioxidant capacity (TAC), total and native thiol levels (TT and NT) were determined in plasma obtained from blood. While no difference was determined between RB and pregnant cows in terms of plasma MDA levels and SOD activities, TOC, TAC, TT and NT levels were found to be higher in RB cows than in pregnant cows. In conclusion; determination of the status of oxidants and antioxidants along with the concentrations of physiological and pathological reactive oxygen species in order to reliably evaluate oxidative stress; since cows that do not fertilize are under oxidative stress, the factors that may cause this should be investigated, eliminated and it was also concluded that it would be beneficial to provide adequate amounts of antioxidants, minerals and vitamins in the rations of these animals.

Author Biographies

Salih Ulutaş

University of Erciyes, Health Sciences Institute

Melikgazi, 38039 Kayseri-TURKEY

Meryem Şentürk

Assoc. Prof. Dr., University of Erciyes, Faculty of Veterinary Medicine, Department of Biochemistry

Melikgazi, 38039 Kayseri-TURKEY

Çağlar Kaan Bozbek

University of Erciyes, Health Sciences Institute

Melikgazi, 38039 Kayseri-TURKEY


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How to Cite

Ulutaş, S., Eren, M., Şentürk, M., & Bozbek, Çağlar K. (2024). OXIDANT/ANTIOXIDANT STATE IN REPEAT BREEDER COWS. Journal of Applied Biological Sciences, 18(2), 127–133. Retrieved from https://jabsonline.org/index.php/jabs/article/view/1280