since the rat haemoglobin exhibited a lower oxygen affinity than guinea pig haemoglobin , the oxygen partial pressure at 50 % of oxygen haemoglobin saturation ( p50 ) increased from 25.2 +/- 1.1 to 37.2 +/- 0.9 mm hg ( n = 10 ) .
C0019046
haemoglobin
C0019016
a