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In vitro postwarming viability of vitrified porcine embryos: Effect of cryostorage length
University of Murcia, Spain .
University of Murcia, Spain .
University of Murcia, Spain .
University of Murcia, Spain .
Vise andre og tillknytning
2010 (engelsk)Inngår i: Theriogenology, ISSN 0093-691X, E-ISSN 1879-3231, Vol. 74, nr 3, s. 486-490Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Porcine embryos, which had been vitrified and stored in liquid nitrogen for up to three yr, were retrospectively analyzed to evaluate the influence of duration of storage on their in vitro viability post-warming. All embryos were vitrified (OPS or SOPS) and warmed (three-step or direct warming) using procedures that resulted in the same in vitro survival, hatching rates, and numbers of cells. Therefore, embryo data obtained using the different procedures were pooled according to their developmental stage as morulae (n = 571) or blastocysts (n = 797) and to the length of their storage in liquid nitrogen: a) 1-9 d; b) 10-30 d; c) 31-90 d; d) 1-3 yr. Non-vitrified embryos of corresponding developmental stages were used as a fresh control group (n = 280). Survival and hatching rates were evaluated after in vitro culture to assess embryo viability. The total number of cells was counted in the resulting viable blastocysts as an indicator of quality. A total of 1,648 fresh and vitrified embryos were analyzed. In vitro survival and hatching rates, but not the number of cells, differed significantly between vitrified morulae and their fresh counterparts irrespective of the duration of cryostorage. Length of storage in liquid nitrogen (LN(2)) did not influence in vitro viability among different groups of vitrified/warmed morulae nor embryos at the blastocyst stage. In conclusion, duration of storage in LN2 has no effect on the post-warming viability of porcine embryos vitrified at morula or blastocyst stage. (C) 2010 Elsevier Inc. All rights reserved.

sted, utgiver, år, opplag, sider
Elsevier , 2010. Vol. 74, nr 3, s. 486-490
Emneord [en]
Porcine; Embryo; Vitrification; Storage; Cryopreservation
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-101729DOI: 10.1016/j.theriogenology.2010.03.003ISI: 000280341300018OAI: oai:DiVA.org:liu-101729DiVA, id: diva2:666644
Tilgjengelig fra: 2013-11-23 Laget: 2013-11-22 Sist oppdatert: 2017-12-06

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