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Table 2 Mean (± SE) circadian rhythm variables (MESOR, amplitude, acrophase, robustness (R²), and circadianity index (CI) of body temperature (T), heart rate (HR), and heart rate variability indices (SDNN and RMSSD) in four Lidia cows based on data recorded by subcutaneous biologgers throughout a 10-day period in summer

From: Biologger-based monitoring of body temperature, heart rate, and heart rate variability in Lidia cattle: relationships with environmental conditions

 

Body T (°C)

HR (bpm)

SDNN (ms)

RMSSD (ms)

MESOR

37.56 ± 0.03

64.08 ± 0.50

16.91 ± 0.43

17.36 ± 0.66

Amplitude

0.42 ± 0.04

4.36 ± 0.73

3.22 ± 0.69

4.91 ± 1.07

Acrophase

19.66 ± 0.35

20.32 ± 0.60

6.38 ± 0.63

5.32 ± 0.80

R2

0.84 ± 0.06

0.65 ± 0.13

0.59 ± 0.14

0.58 ± 0.14

CI

3.40 ± 0.84

2.02 ± 0.59

1.73 ± 0.60

1.72 ± 0.61

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