No Peri- and Postnatal Effects on Calves Born After Transfer of in Vitro Produced Embryos Vitrified by the Open Pulled Straw (OPS) Method |
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| Authors: | H Jacobsen P Holm M Schmidt B Avery T Greve H Callesen |
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| Institution: | 1.Institute of Food Safety and Nutrition,Danish Veterinary and Food Administration,M?rkh?j,Denmark;2.Department of Animal Breeding and Genetics,Danish Institute of Agricultural Sciences,Tjele,Denmark;3.Department of Clinical Studies,The Royal Veterinary and Agricultural University,Frederiksberg,Denmark |
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| 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. |
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