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Does seminal plasma improves the fertility of cryopreserved ram semen?

Abstract:

The aim of the present article is to provide an updated review about the role of seminal plasma and its protein components on the fertilizing capacity of cryopreserved ram semen. Artificial insemination in sheep is performed cervically using fresh/refrigerated semen since the use of frozen/thawed by the same trial causes low pregnancy rates. With the objective of improving sperm posthawing quality and reach pregnancy rates similar to those obtained with fresh semen, seminal plasma has been the subject of numerous studies. Research results have shown that seminal plasma and their low molecular weight proteins are able to improve qualitative parameters of ram cryopreserved sperm. However, studies on the effect of PS on sperm function remaining contradictory.