Abstract
Purpose
In an attempt to improve in vitro embryo production, we investigated the effect of fibroblast growth factor 10 (FGF10) during in vitro maturation on the developmental capacity of bovine oocytes.
Material and methods
Cumulus–oocyte complexes (COCs) were aspirated from follicles of 3–8 mm diameter. After selection, the COCs were matured in medium with or without 0.5 ng/mL of FGF10. The effect of FGF10 during in vitro maturation (IVM) on nuclear maturation kinetics and expansion of the cumulus cells was investigated. Oocyte competence was assessed by the production and development speed of embryos and the relative expression of genes associated with embryo quality.
Results
FGF10 delayed the resumption of meiosis from 8 h onwards, but did not affect the percentage of oocytes reaching metaphase II, nor did it increase cumulus expansion at 22 h of maturation. We found no difference between treatments regarding embryo production, developmental speed, and gene expression.
Conclusion
In conclusion, the presence of FGF10 during IVM had no effect on embryo production, developmental speed, and gene expression.
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Acknowledgements
The authors thank the Brazilian Agricultural Research Corporation (EMBRAPA, 01.13.06.001.04.00) and Coordination for Improvement of Higher Education Personnel (CAPES, 564376/2010-8) for their financial support and the Qualimax (Luziânia-GO) slaughterhouse for providing the necessary biological materials for this experiment.
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Capsule Use of FGF 10 during IVM of bovine oocytes does not affect embryonic development.
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Diógenes, M.N., Guimarães, A.L.S., Leme, L.O. et al. Bovine in vitro embryo production: the effects of fibroblast growth factor 10 (FGF10). J Assist Reprod Genet 34, 383–390 (2017). https://doi.org/10.1007/s10815-016-0852-8
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DOI: https://doi.org/10.1007/s10815-016-0852-8