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Quercetin in equine frozen semen
J S Filho1, C D Corcini2, F C C Santos1
1Pos-Graduacao em Veterinaria, Faculdade de Veterinaria, Universidade Federal de Pelotas, Campus Universitário, Pelotas, Brasil.
Abstract:
BACKGROUND: Supplementation of sperm diluents to reduce the damage caused by the freeze-thaw cycle is broadly used in equine semen cryopreservation.
Objective:
The present study aimed at determining the most appropriate quercetin supplementation in equine freezing extender.
Materials And Methods:
Quercetin at four different concentrations (0.25, 0.5, 0.75 or 1 mM) was added in the sperm freezing diluent before the freeze-thaw cycle. The spermatozoa population was analyzed by flow cytometry and a statistical analysis was conducted to detect significant differences between control and treated samples.
Results:
The statistical analysis did not reveal any significant modification of seminal parameters.
Conclusion:
Within the concentrations tested, quercetin supplementation in equine freezing extender did not affect progressive motility, mitochondrial functionality, acrosome reaction, membrane integrity or DNA fragmentation index in post-thaw equine semen.
