Prolonged Chilled Preservation and Preliminary Investigations of Energy Production of Koala (Phascolarctos cinereus) Spermatozoa

Background: The current inability to successfully cryopreserve koala spermatozoa limits the capacity to maintain the genetic diversity of current and future koala populations by means of assisted breeding technologies (ABT). Consequently, this research focused on the prolonged chilled (5 °C) preservation of electro-ejaculated koala semen in order to facilitate artificial insemination of captive and wild populations.