QUALITATIVE INDICATORS OF RAM SPERM IN CASE OF USING REDUCED GLUTATHIONE AND BSA AS A COMPONENT OF THE EXTENDER FOR CRYOPRESERVATION
Abstract
The addition of 5 µМ of reduced glutathione and 15 mg/ml of BSA to LYTCGE leads to an increased activity of antioxidant enzymes (SOD and GPO) and LDH in the sperm after equilibration by 12,0, 24, 4 and 17, 5 % respectively, after freezing -thawing – by 19,7, 28, 6 and 24,1 %, as well as a decreased content of TBA-active products and a decreased activity of AST in the sperm plasma after equilibration by
22,2 and 12,1% respectively, after thawing – by 27,4 and 16,3%, which indicates a decreased damage to sperm membranes. The obtained results can serve as a basis for in -depth research on improving the extender for cryopreservation of ram sperm and
its testing in the practice of sheep breeding.
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