CARD Rat Freezing Kit

CARD Rat Sperm Freezing Kit is hardware accessory that facilitates the production of high-quality frozen rat sperm during cryopreservation with CARD FERTIUP® Rat Sperm Cryopreservation Agent. The kit contains a sperm straw holding plate and a foam float for the holding plate. Together, they permit sperm-filled sperm straws to be floated just above the liquid in a container of liquid nitrogen, in order to control the freezing rate prior to full immersion in a liquid nitrogen tank. Similarly, the tray and float can also be used to float sperm straws above liquid nitrogen during the rat sperm thawing procedure.