RT info:eu-repo/semantics/article
T1 Centrifugal force assessment in ram sperm: identifying species-specific impact
A1 Neila Montero, Marta
A1 Fernández Riesco, Marta
A1 Álvarez García, Mercedes
A1 Montes Garrido, Rafael
A1 Boixo, Juan Carlos
A1 Paz Cabello, Paulino de
A1 Anel López, Luis
A1 Anel Rodríguez, Luis
A2 Sanidad Animal
K1 Veterinaria
K1 Centrifugation
K1 Ejaculate handling
K1 Ovine
K1 Semen
AB [EN] Background: Centrifugation is routinely employed in handling the ejaculates of some species, but it is not part of the commonly used protocols in ram. However, the development and implementation of new assisted reproductive technologies, alternative preservation models based on washing sperm from a cellular ageing-accelerating substance such as the seminal plasma, and basic studies in spermatology is associated with the use of centrifugation. This requires a specific evaluation of the centrifugation protocols considering the species-specific relationship with the potential damage produced by this procedure. No previous studies have determined the effect of different centrifugation forces on ram sperm. Therefore, we aimed to assess the performance of three centrifugal forces (600×g, 3000×g, and 6000×g for 10 min at room temperature) and their effects on ram sperm motility and functionality. Results: Sperm motility and functionality parameters were assessed at 0 h and after 2 h of incubation at 37 °C. As expected, a higher cell packaging degree was obtained at high centrifugation forces (P ≤ 0.0001). Cell packaging was unstable at all centrifugal forces. Thus, there was a high cell resuspension rate after less than 2 min. Regarding sperm quality, there was a change in movement pattern of 3000×g and 6000×g centrifuged sperm after 2 h of incubation at 37 °C, characterized by an increase in rapid progressive motility, linearity, straightness, and beat frequency, and a decrease in medium progressive motility, curvilinear velocity, path velocity, and head lateral amplitude. Non-significant differences were obtained among the different treatments concerning the total viability. However, we observed a significant increase (P ≤ 0.05) in the percentage of viable apoptotic sperm in the samples centrifuged at 6000×g at 0 h. Conclusions: Centrifugal forces equal to or greater than 3000×g induced some deleterious effects in ram sperm quality, and lower forces did not provide a successful cell packaging degree.
PB BMC
LK https://hdl.handle.net/10612/18452
UL https://hdl.handle.net/10612/18452
NO Neila-Montero, M., Riesco, M. F., Alvarez, M., Montes-Garrido, R., Boixo, J. C., de Paz, P., Anel-Lopez, L., & Anel, L. (2021). Centrifugal force assessment in ram sperm: identifying species-specific impact. Acta Veterinaria Scandinavica, 63(1). https://doi.org/10.1186/S13028-021-00609-8
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 14-jun-2024