Association between conventional semen variables and sperm freezability in rams
Makhanbetova A. Savvulidi F.G. Ptáček M. Langerová L. Kulataev B. Malmakov N.
2025Czech Academy of Agricultural Sciences
Czech Journal of Animal Science
2025#70Issue 393 - 101 pp.
Assessments of routine ejaculated samples were used to evaluate the conventional semen variables (sperm motility, semen volume, sperm concentration) as initial decision-making criteria to freeze or not to freeze. However, the association of these attributes to the cryotolerance of ram sperm has not been adequately studied yet. The aim of this study was therefore to analyse if the semen volume, sperm motility and concentration can be used to predict post-thaw ram sperm motility. Additionally, in the present study we tested if the order of ejaculate sampling (first versus second, within a single collection session) and the breed of rams influenced cryopreservation outcomes.
breed , cryopreservation , ejaculate volume , order of ejaculate collection , sperm concentration , spermatozoa motility
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Meat Sheep Breeding Department, Kazakh Research Institute of Livestock and Fodder Production, Almaty, Kazakhstan
Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sceinces (CULS) Prague, Prague, Czech Republic
Meat Sheep Breeding Department
Department of Animal Science
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