Supplementation of extender with chamuangone-enriched Garcinia cowa leaf extract improves quality parameters and longevity of cold-stored cat semen.

Background: Semen preservation by cooling is less expensive, simpler and results in less sperm damage than freezing does. However, spermatozoa can only be preserved for a short period due to the excessive formation of reactive oxygen species (ROS). Although several antioxidants can protect sperms from ROS damage during storage at low temperatures, the use of natural antioxidants derived from plants would be a better alternative.