Document Type : Research Paper
Author
Abstract
In this study antioxidant effects of olive leaf extract (OLE) in comparison to vitamin C and E on chilled-stored (at 5 °C) bovine sperm was evaluated. The sperm samples collected from epididymis of ten Holstein bovine testis with 3-5 years old, and were diluted with egg yolk and sodium citrate containing 0.5, 1.0 and 2.0 mg/ml of OLE as well as 2 mg/ml vitamin E and C. Addition of OLE significantly reduced sperm motility (P<0.05). Vitamin E significantly improved sperm membrane integrity compared to the other groups (P<0.05). TBARS in 2 mg/ml of OLE treatment was significantly less than that in other treatments (P<0.05). The results showed that addition of OLE to bovine sperms stored at 5 ͦ C for 48 h negatively affected sperm motility despite of a decrease in lipid peroxidation, and therefore, it is not suitable extender to be used for bovine spermatozoa.
Keywords
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