the first series of experiments , consisting of four groups of piglets , showed that blood flow to the proximal and distal small intestine and colon ( as determined by the microsphere technique ) significantly decreased after piglets were subjected to a sustained hypoxic hypoxemia ( pao2 50 % of control ) or asphyxia ( acidosis plus hypoxia ) for 90 min .
C0004044
asphyxia
C0242184
hypoxia