The impact of autologous platelet-rich plasma supplement on Ossimi ram semen quality and fertility: In vivo fertility of freshly diluted and frozen-thawed spermatozoa

The study aimed to investigate the effects of using the ram's platelet-rich plasma (PRP) as a supplement on the quality, functionality, antioxidant activity, and in vivo fertilization of freshly diluted and frozen-thawed ram semen. Nine Ossimi rams were involved in the analysis, which comprised 162 ejaculates. Each ejaculate was segmented into five parts and mixed with a Tris-based extender containing varying concentrations of autologous PRP (ranging from 0% to 10%) for both freshly diluted and frozen-thawed semen. The evaluation encompassed sperm viability, motility, kinetics, functional traits, antioxidant enzyme activity, lipid peroxidation content, and in vivo fertility. Results showed that supplementing with 5% PRP in both freshly diluted and frozen-thawed semen led to increased total and progressive motility of sperm, improved sperm kinetics and functional characteristics, and enhanced viability compared to the control groups. Notably, concentrations of PRP at 5% and 7.5% reduced malondialdehyde levels while increasing total antioxidant capacity, glutathione reductase, and superoxide dismutase levels compared to the groups supplemented with 10% PRP and the control groups. Furthermore, the in vivo fertilization rate of ram semen significantly improved with 5% PRP supplementation compared to the control groups for both freshly diluted and frozen-thawed semen.

In conclusion, the study suggests that incorporating 5% autologous PRP into seminal extenders can protect Ossimi ram sperm and enhance in vivo fertility for freshly diluted and frozen-thawed semen.