Rhesus macaque red blood cells frozen with 40% glycerol and stored at -80 C.

Red blood cells of rhesus macaques cryopreserved with 40% (w/v) glycerol and stored at -80 C had freeze-thaw-wash recovery values of 87%, 24-hour posttransfusion survival values of 85%, and life-span values of 13 days. Liquid and freezing methods of preserving RBC were studied in the macaques.