[Effect of anemia on various reactions of domestic swine due to physical exertion. 4. Changes of serum acid-base equilibrium].

Carbon dioxide tension, pH and the excess of base were determined in blood samples obtained from the posterior vena cava of six healthy and six anaemic pigs subjected to ten minutes of exercise on a belt moving at 78 m/min at 22-24 degrees C and relative humidity of 55-65%. The fall in these values during physical exertion was greater in anaemic than in healthy pigs. The roles of buffering capacity and rise in body temperature, and the relationship between blood lactic acid and base excess were discussed.