Variables

Control

Diseased calves

P Value

pH

7.392 ± 0.02

7.24 ± 0.01

< 0.0001

PCO2 (mmHg)

40.84 ± 1.84

30.85 ± 0.67

< 0.0001

PO2 (mmHg)

39.80 ± 0.80

35.95 ± 0.59

0.0053

HCO3- (mmol/L)

25.40 ± 1.12

17.00 ± 0.52

< 0.0001

BE (mmol/L)

1.08 ± 0.77

-6.150 ± 1.10

0.0029

Sodium (mmol/L)

136.4 ± 1.17

131.40 ± 1.52

< 0.0001

Potassium (mmol/L)

4.70 ± 0.29

3.920 ± 0.25

0.1442

Chloride (mmol/L)

102.0 ± 0.84

98.25 ± 2.13

0.0064

AG (mmol/L)

13.40 ± 2.19

19.70 ± 3.36

0.0027

Lactate (mmol/L)

1.34 ± 0.12

3.965 ± 0.23

< 0.0001

PCO2 partial pressure of carbon dioxide tension; PO2 partial pressure of oxygen tension; HCO3-Blood bicarbonate; BE Base excess; AG Anion gap
Table 3: Mean values SEM of blood gases and acid-base parameters in 10 clinically healthy calves and 20 calves with acute ruminal drinking.