Resveratrol supplementation and cryopreservation of buck semen.

Cryobiology
Laura FalchiMaria Teresa Zedda

Abstract

Resveratrol (Resv) was tested to assess its effects on buck semen freezability. Ejaculates of 4 bucks were collected, washed and diluted in a commercial extender at 30 °C. Extended semen was divided into 4 aliquots supplemented with increasing concentrations of Resv: 0 μM (control); 10 μM; 25 μM and 50 μM. Aliquots were cooled to 4 °C in 5h and frozen in LN2. Thawing was performed at 37 °C for 30 s. At the 3 stages of the experiment (30 °C, 4 °C, thawing), motility (CASA), osmotic resistance (Hos test) and integrity of cytoplasm and acrosome membranes (PI/PSA staining) were assessed. Moreover, in thawed samples, the oxidative status (MDA assay) and early apoptosis (DNA fragmentation by TUNEL assay) were evaluated. Resveratrol supplementation did not affect most of the motility parameters analysed, except for total motility, ALH (lateral head displacement) and velocity distribution (P < 0.05). Functional and morphological integrity of membranes was not affected at any stage of the experiment (P > 0.05). In thawed spermatozoa, the oxidative status was not preserved by Resv (P > 0.05) while early apoptosis, was significantly decreased in the 50 μM Resv group (P < 0.05). Resveratrol did not improve buck semen freezability; the obse...Continue Reading

References

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Citations

Oct 9, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Rolando PasquarielloMargherita Maranesi
Jul 27, 2021·Poultry Science·Fereshteh Sadat RezaieAbdolhosein Shahverdi
Aug 8, 2021·Animals : an Open Access Journal From MDPI·Ander Arando ArbuluCarlos Carmelo Pérez-Marín

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