the binding of 125i-labelled rat uterine luminal proteins from day-5 pregnant rats showed higher binding affinity to blastocysts than did the binding of proteins in uterine fluid from pro-oestrous rats ( day 0 ) , rat serum albumin ( rsa ) or bovine serum albumin ( bsa ) .
C0036773
serum albumin
C0036774
bovine serum albumin