This study was aimed to explore impact of removal of cell membrane Galα1-3Galβ1-4Glc NAc epitopes (called α-Gal) and chemical modification of otherxenoantigen on bovine red blood cell (bRBC) and porcine red blood cell (pRBC) antigenicity and to compare thier modified erythrocytes, in order to provide basisfor developmentof human bloodsubstitute with rich source, high safety and efficacy.

This text gives rise to a large number of blood and regards the characteristic resources in order to butcher the yak,and puts forward to use yak blood system the taking immunity egg white technology,and has been in progress the analysis to feasible nature and synthetical beneficial result of this item technology.