Abstract: To determine the relationship between hemodynamics and hemorheology and tongue complexion of animals. The Hemodynamics and hemorheology parameters were measured by using noninvasion technic in 83 mule with intestinal obstruction. It was found that as tongue complexion changed from normal to pink, red and crimson, the parameters PR, CO, CI, EWK, HOI, BLK and blood viscosity increased gradually (P<0.05, or P<0.001), while MRT, MST, FEK and VER decreased gradually (P<0.05, or P<0.001).The parameter PR, CO, CI, EWK, HOI, BLK, , MRT, MST, FEK and VER were much different in mule with normal, pink, red and crimson tongue complexion. This study suggested that there are different changes in cardiovascular function as tongue complexion changed from normal to pink, red and crimson in mule.

Key words: Mule, Tongue complexion, Hemodynamics, Hemorheology