A González-Plaza, M Garcia-Canovas, I Parrilla, H Rodriguez-Martinez, M A Gil, E A Martinez, C Cuello
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The Cryotop vitrification system is competent for the simultaneous cryopreservation of large numbers of pig in vitro-produced blastocysts.
This study aimed to compare the effectiveness, in terms of viability and quality post-warming, when vitrifying in vitro-produced (IVP) pig blastocysts with either a modified Cryotop (n = 161; 20 blastocysts/device) or the conventional Superfine Open Pulled Straw (SOPS; n=160; 5-6 blastocysts/device systems. Blastocyst viability, morphology, and apoptosis parameters were evaluated after 24 h of in vitro culture. The Cryotop system yields better results in terms of higher embryo viability and total cell numbers (p < .05) and lower apoptosis (p < .05) parameters than the SOPS procedure, defining a high effectiveness to simultaneously vitrify 20 pig IVP blastocysts at one time, thus increasing the yield of IVP blastocysts readily available for embryo transfer.
期刊介绍：
The journal offers comprehensive information concerning physiology, pathology, and biotechnology of reproduction. Topical results are currently published in original papers, reviews, and short communications with particular attention to investigations on practicable techniques.
Carefully selected reports, e. g. on embryo transfer and associated biotechnologies, gene transfer, and spermatology provide a link between basic research and clinical application. The journal applies to breeders, veterinarians, and biologists, and is also of interest in human medicine. Interdisciplinary cooperation is documented in the proceedings of the joint annual meetings.
Fields of interest: Animal reproduction and biotechnology with special regard to investigations on applied and clinical research.
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