Sperm cryopreservation in farm animals
This special issue belongs to |
International Journal of Animal Biotechnology and Applications |
Related section |
NA |
Deadline for Manuscript Submission |
March 31st, 2022 |
Deadline for Publication |
April 15, 2022 |
Special Issue Description
Dear Collegues,
One of the key steps in the development of biotechnologies for assisted reproduction is the cryopreservation of sperm. The use of cryopreserved sperm in some agricultural animals offers so many advantages that its applicability has grown in recent years. However, there are differences in post-thaw sperm quality ratings between species and even within the same species. Differences between studies are also a result of the lack of a standardized methodology for each step of the cryopreservation process, including andrological examination, semen collection, dilution, centrifugation, resuspension of the pellet with the freezing medium, packaging, freezing, and post-thaw sperm evaluation. Sperm and seminal plasma (SP) cryotolerance indicators have been assessed for predicting ejaculate freezability.
An emphasis on adding other chemicals, such as enzymatic and non-enzymatic antioxidants, to cryopreservation media has also been explored in earlier studies. In most trials, the addition of these compounds reduced the negative effects on sperm structure and function, which enhanced post-thaw sperm quality and fertilizing ability. Another strategy is to utilize several cryoprotectants. The purpose of this review paper is to give readers an update on farm animal sperm cryopreservation. The main unfavorable effects of cryopreservation are discussed, along with how it affects reproductive function. The addition of chemicals that can lessen the negative effects of freezing and thawing on sperm is also considered, as well as the potential use of molecular indicators to predict sperm cryotolerance.
Keywords
* Cryotolerance
* Cryopreservation
* Agricultural animals
* Sperm quality
* Molecular indicators
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