Single Layer Centrifugation with Androcoll-P Can Be Scaled-Up to Process Larger Volumes of Boar Semen

Abstract EN

The objective of this study was to scale-up the procedure for Single Layer Centrifugation (SLC) through AndrocollTM-P, as a preliminary step towords processing the whole ejaculate.

The first experiment compared Single Layer Centrifugation using 4.5 mL and 15 mL extended ejaculate (SLC-4.5 and SLC-15, resp.), assessing sperm quality by objective motility analysis, morphology, viability, and the production of reactive oxygen species (ROS).

In the second experiment, SLC-4.5 was compared to Single Layer Centrifugation with 25 mL extended ejaculate (SLC-25) using motility analysis and morphology.

In both experiments, normal morphology and linear motility were significantly higher in the SLC-selected samples than in the uncentrifuged controls (P<.001), whereas total motility and membrane integrity were unchanged.

Although ROS production was higher in the SLC-selected samples than in the controls (P<.01), this might have been due to the presence of antioxidants in seminal plasma in the latter.

In conclusion, there was no difference in sperm quality between SLC-4.5 and SLC-15 samples, or between SLC-4.5 and SLC-25 samples, indicating that the SLC method can be scaled-up successfully.