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Updated: Aug 30, 2026
Cryopreservation of Preimplantation Embryos of Cattle, Sheep, and Goats
Published on: August 5, 2011
No peri- and postnatal effects on calves born after transfer of in vitro produced embryos vitrified by the open
H Jacobsen1, P Holm, M Schmidt
1Institute of Food Safety and Nutrition, Danish Veterinary and Food Administration, Mørkhoj, Denmark.
Abstract:
The general objective of this study was to perform follow-up studies including selected peri- and postnatal characteristics on calves born after transfer of in vitro produced (IVP) embryos vitrified by the 'Open Pulled Straw' (OPS) method. An overall pregnancy rate of 16% after transfer of the OPS-vitrified IVP embryos was achieved and resulted in birth of 9 calves, with 11 AI calves serving as controls. There were no immediate or long-term effects on these calves with respect to birth weight, gestation length, perinatal mortality, growth rate, disease susceptibility and reproductive performance.
