Table 2.
Spearman’s rank correlation coefficient (rs), concordance correlation coefficient (CCC) and Bland–Altman analysis (bias, upper and lower 95% limits of agreement) of cow grazing and rumination data, recorded by visual observation and by automated measurements in 15-min and 1-h resolutions
| Behaviors | rs | CCC | Bias | Lower | Upper |
|---|---|---|---|---|---|
| Grazing time (min/15 min) | 0.90 | 0.95 | 0.27 | −3.76 | 4.31 |
| Rumination time (min/15 min) | 0.93 | 0.98 | 0.10 | −2.09 | 2.30 |
| Grazing time (min/h) | 0.94 | 0.97 | 1.01 | −10.18 | 12.21 |
| Rumination time (min/h) | 0.97 | 0.98 | 0.00 | −4.93 | 4.93 |