53rd Annual Conference of Physiology and Pathology of Reproduction and 45th Joint Conference of Veterinary and Human Reproductive Medicine, Rostock, Germany, 26th – 28th February 2020 Guest Editors: Jens Vanselow, Jennifer Schoen, Anja Baufeld. The abstracts of this conference will be jointly published in Reproduction in Domestic Animals (RDA) and the Journal of Reproductive Medicine and Endocrinology (JRE)., Rostock, Almanya, 26 Şubat 2020, cilt.55, ss.28-29