Table 1 Meteorological data, physiological responses and gas exchange of Jersey dairy cattle according to THI (time)

Indoor temperature (°C)

26.7^c

30.2^b

36.0^a

Outdoor temperature (°C)

25.4^c

29.6^b

36.0^a

Humidity

68.2^a

52.0^b

31.8^c

Dry-bulb temperature (°C)

26.1^d

29.5^c

35.3^a

Wet-bulb temperature (°C)

25.2^c

26.5^b

28.7^a

THI

77^c

82^b

88^a

RR (bpm)

51^c

76 ^b

121^a

RT (°C)

38.5^c

38.7^b

39.6^a

ST (with hair) (°C)

36.0^c

38.2^b

39.3^a

pH

7.41^c

7.45^b

7.49^a

pCO₂ (mmHg)

41^a

37.5^b

33^c