Pregnancy Rates Associated with Oxidative Stress after Estrus Synchronization of Bulgarian Murrah Buffaloes in Breeding and Non-Breeding Season

Background: The current study aims to measure the effect of oxidative stress on pregnancy rates Bulgarian Murrah buffaloes during breeding and non-breeding season.
 Methods: group consisted 24 mature more than 40 days after parturition. following parameters were measured: Reactive Oxygen Species (ROS) products, Ascorbate radicals, Malondialdehyde (MDA), Nitric Oxide (NO), Super Dismutase (SOD), Glutathione peroxidase (GSH-Px), Protein Carbonyl Content (PPC), total oxide. Presynch/Ovsynch protocol was used for estrus synchronization.
 Results: A statistically significant increase in ROS products measured blood serum season compared with season. highest levels non-pregnant High registered due low SOD activity observed summer lowest GSH-Px both periods. During season, concentrations NO PPC elevated.
 Conclusion: Comparing obtained results antioxidant concerning rate depending showed that realized at higher values SOD. Increased observed, resulting a as well decreased