Effect of Yizhikang powder on hemorheological indexes in dairy cattle with retained placenta.

[Objective] The aim of the research was to reveal the mechanism of Yizhikang powder treatment on dairy cattle with retained placenta from the haemorheological perspective.[Method] Dairy cattle with retained placenta were treated with oral administration of Yizhikang powder.And their haemorheological indexes were measured and compared with the corresponding indicators of pre-administration group,healthy group,and control group(sick but untreated).[Result] There was large decrease amplitude in the indexes(whole blood viscosity,plasma viscosity,whole blood viscosity reduction viscosity,ESR,ESR equation K value,fibrinogen content,platelet aggregation rate and RBC deformability IF value) of treated dairy cattle with retained placenta.By t test,the indexes,with the exception of hematocrit,decreased significantly after treatment(P0.05) and reached the status of post partum healthy cows.The haemorheological indexes didn't change significantly in the control group before and after treatment.[Conclusion] Yizhikang powder could significantly improve blood flow state and reduce the occurrence of qi stagnation and blood stasis in perinatal period.