  In this study, we examine the mechanical and histological properties of the
bovine liver tissue stored in Lactated Ringers (control), HTK and UW solutions
as a function of preservation period. The mechanical experiments are conducted
with a shear rheometer on cylindrical tissue samples extracted from 3 bovine
livers and the change in viscoelastic material properties of the bovine liver
is characterized using the fractional derivative Kelvin-Voigt Model. Also, the
histological examinations are performed on the same liver samples under a light
microscope. The results show that the preservation solution and period have a
significant effect on the mechanical and histological properties of the liver
tissue.
