Here, we present a protocol for non-invasive assessment of oocyte developmental competence performed during their in vitro maturation from the germinal vesicle to the metaphase II stage. This method combines time-lapse imaging with particle image velocimetry (PIV) and neural network analyses.
Cavalera, F., Zanoni, M., Merico, V., Bui, T. T. H., Belli, M., Fassina, L., Garagna, S., Zuccotti, M. A Neural Network-Based Identification of Developmentally Competent or Incompetent Mouse Fully-Grown Oocytes. J. Vis. Exp. (133), e56668, doi:10.3791/56668 (2018).