RT Journal Article
SR Electronic
A1 Jovičić, Marija
A1 Chmelíková, Eva
A1 Sedmíková, Markéta
T1 Cryopreservation of boar semen
JF Czech Journal of Animal Science
YR 2020
VO 65
IS 4
SP 115
OP 123
DO 10.17221/47/2020-CJAS
UL https://cjas.agriculturejournals.cz/artkey/cjs-202004-0001.php
AB Sperm cryopreservation is the best technology for long-term storage of the semen. However, the damage of boar spermatozoa by cryopreservation is more severe than in other animal species and a standardized freezing protocol for efficient cryopreservation has not been established yet. Semen quality and freezability vary greatly between breeds as well as between individual boars and even the season. Boar spermatozoa are sensitive to low temperatures; they sustain damage and a high rate of mortality and freezing/thawing the boar semen may strongly impair the sperm function and decrease the semen quality. The freezability of boar semen can be influenced by a cryopreservation procedure, and also by using various additives to freezing and thawing extenders such as antioxidants. In order to obtain acceptable results after thawing the boar semen, it is necessary to combine an optimal amount of additives (glycerol, egg yolk, sugars, antioxidants), cooling and warming velocities.