Particularități privind evaluarea calității materialului seminal la tauri în funcție de perioada de păstrare
2024
Cibotaru, Elena | Darie, Grigore | Pîrlog, Alisa | Pavlicenco, Natalia
This study presents the evolution of the quality of bull semen frozen between 1978-1986 and thawed in the present - 2022-2024, evaluating the essential parameters of reproductive performance, such as: sperm motility, sperm concentration, progressive movements and advanced movements (VAP, VSL, VCL) etc. The results obtained demonstrate a significant fluctuation of these parameters, with a general trend of decreasing sperm motility and concentration. Sperm mobility has recorded a constant decrease, with a notable reduction during storage up to the present 2022-2024. This is also manifested in the sperm concentration which has recorded a continuous decrease over time, which indicates possible fluctuations depending on environmental conditions and sperm preservation technologies. Progressive movements recorded significant values, suggesting the need for further investigations to identify the specific factors that influence semen quality. Regarding advanced movements (VAP, VSL, VCL) the same trend of decrease in semen frozen in 1982-1986 and thawed in the period 2022-2024 was recorded. These results highlight the importance of constant monitoring of semen quality and the need to optimize preservation technologies to ensure reproductive success in production and teaching farms.
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