background: spermatozoa cryopreservation is used for the management of infertility and some other medical conditions. the routinely applied cryopreservation technique depends on permeating cryoprotectants, whose toxic effects have raised the attention towards permeating cryoprotectants-free vitrification technique. objective: to compare between the application of slow cryopreservation and vitri...

Cryopreservation induces oxidative stress on sperm due to an increase in the number of reactive oxygen species (ROS), thereby resulting decreased quality. ROS's destructive potential is normally counteracted by their innate antioxidant system consisting enzymes, which include superoxide dismutase (SOD). This study aimed assess quality semen from Itik Pinas-Khaki (IP-Khaki) drakes that were cryo...

The history of artificial insemination (AI) begins with a story about some Arabs stealing stallion semen from a rival tribe and bringing it home for breeding in a sponge. When AI began its modern development in Russia during the early 20th century by Ivanov, the main object was not cattle but horses as documented by Milovanov. In the late 1940s, Christopher Polge, working with chicken and the e...

The aim of this study was to investigate the effects of storage of semen in different commercial extenders on the pre-freezing and post-thawing quality of boar spermatozoa. Semen was diluted in BTS, Androhep (AH) and Gedil (GD), stored for 24 h at 17°C, and then frozen in accordance with the cryopreservation protocol. Analyses of the quality of spermatozoa included: motility, normal apical ridg...

We evaluated the long-term effects of cryopreservation on spermatozoa of men with testicular cancer, lymphoma, and benign conditions. No statistically significant decrease in semen parameters was noted. Duration of follow-up was up to 5 years and mean follow-up was 2 years.

Background: Hen egg yolk is a common component of most semen cryopreservation extenders. However, diluents containing the egg yolk may have adverse effects on the quality of the semen. Egg yolk could be solubilized by the addition of sodium dodecyl sulphate (SDS) in semen extenders. Many studies have shown beneficial effects of antioxidants addition to semen freezing extenders. Antioxidants are...