We propose to develop a computational personalized medicine approach for oocyte collection during in vitro fertilization (IVF). The project will complement and extend a previously approved PHRT iDoc grant. In particular, additional hormones will be measured, and we will complement clinical measurements with measurements in cattle, a large animal model, to obtain data that cannot be collected from patients, and enlarge the set of hormones to be assessed. Our project represents an opportunity to pave the way for mechanistic modeling in personalized medicine.