Svoradová A, Kuželová L, Vašíček J, Olexíková L, Baláži A, Kulíková B, Hrnčár C, Ostro A, Bednarczyk M, Chrenek P. The Assessment of Cryopreservation on the Quality of Endangered Oravka Rooster Spermatozoa Using Casa and Cytometry.
Cryo Letters 2018;
39:359-365. [PMID:
30963152]
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Abstract
BACKGROUND
Preservation of genetic resources in gene bank is necessary for conservation of endangered poultry species.
OBJECTIVE
This study is to characterize Oravka rooster semen quality.
MATERIALS AND METHODS
Heterospermic pool was diluted (1:1 by volume) in a freeze medium composed of a commercial diluent (Kobidil+, K), 8% dimethyl sulphoxide (DMSO) or 8% ethylene glycol (EG) or 8% glycerol (GL), and then frozen in liquid nitrogen vapour.
RESULTS
Spermatozoa in the GL/K+ had significantly higher number of motile and progressively moving spermatozoa (p < 0.05) than in DMSO/K+ and EG/K+ groups. The percentage of apoptotic and necrotic spermatozoa were significantly higher in the DMSO/K+ and EG/K+ groups compared with the GL/K+ group. Based on the total motility, progressive movement parameters and viability, our study showed that 8% GL diluted in Kobidil+ provided the highest cryoprotective effect on the Oravka rooster spermatozoa.
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