The number of oocytes retrieved during assisted reproduction is a key determinant of success in both cattle and humans. Ovarian follicular flushing is not practised in cattle but offers the prospect of increasing oocyte yield and number of transferrable embryos. We determined that a ‘hybrid’ approach of flushing larger follicles and aspirating smaller follicles has potential in this regard. These findings serve as an impetus for follow-up studies in human and equine assisted reproduction. Image provided by authors.

This article belongs to the collection: The biology of the ovary – Honouring the contributions of Ken P McNatty and Rex J Scaramuzzi.