Table 1.
Least square mean ± standard error of the physiological responses of heifers in silvopastoral (SP; n = 16) or intensive rotational grazing (IR; n = 16) systems.
| Factors | Variablesc | |
|---|---|---|
| RR (breaths/min) | HR (beats/min) | |
| System | ||
| SP | 46.4 ± 1.0 | 96.5 ± 1.2 |
| IR | 44.4 ± 1.0 | 93.1 ± 1.2 |
| Month | ||
| December | 45.4 ± 1.7 | 83.0 ± 2.1b |
| January | 48.3 ± 1.9 | 100.9 ± 2.2ª |
| February | 44.2 ± 1.9 | 105.2 ± 2.2ª |
| March | 44.6 ± 1.7 | 95.0 ± 2.1b |
| April | 43.8 ± 1.7 | 94.4 ± 2.1b |
| May | 46.1 ± 1.9 | 90.3 ± 2.2b |
| P valuesd | ||
| Se | 0.19 | 0.06 |
| Mf | 0.52 | < 0.01 |
| S*Mg | 0.45 | 0.61 |
a,bMeans followed by different lowercase letters on the same column are significant.
cRR respiratory rate, HR heart rate, dP values < 0.05 were considered significant. eS system, fM month (experimental month), gS*M interaction between system and month.