[Reactions of European wild boars (Sus scrofa scrofa L.) to running stress. 2. Circulation values, blood glucose and lactates and blood acid-base status].

Four female and four male wild boars, 63.8 +/- 4.43 kg in live weight, were exposed to locomotor stress on a horizontally operated belt set to a speed of 2.5 m/s for ten minutes. The ambient temperatures were between 12 degrees C and 18 degrees C and the relative humidities between 55 and 75%. The following parameters were measured prior to, during, and after the stress tests: rectal temperature, haemoglobin level, haematocrit, plasma and blood volumes, total haemoglobin levels, lactic acid and glucose levels in blood plasma, pH, pCO2, and excess base. Rectal temperatures went up continuously. Haemoglobin levels, blood volumes, haematocrit values, and total heamoglobin were increased due to the mobilisation of erythrocytes from the spleen. The plasma volume remained constant. Lactic acid went up at the beginning of the stress run and declined during running. Respiratory alkalosis occurred in the context of the acid-base state prior to, towards the end, and even more after stressing.