| Regression equation | ||
| Parameters | RT (°C) | THI |
| RT (°C) | −−−−−− | RT (°C) = 0.323 × THI +12.66 R² = 0.82***; r = 0.87*** |
| HR (Beat./min) | HR (Beat./min) = 13.97× RT − 471.8 R² = 0.84**; r = 0.77** | HR (Beat./min) = 4.607 × THI − 301.5 R² = 0.89***; r = 0.85*** |
| RR (Insp./min) | RR (Insp./min) = 41.24 × RT − 1541 R² = 0.87**; r = 0.93** | RR (Insp./min) = 3.64 × THI − 214.2 R² = 0.52**; r = 0.72** |
| DMI (kg/day) | DMI (kg/day ) = −1315 × RT + 70,44 R² = 0,91***; r = −0.85*** | DMI (kg/day ) = −0.736 × THI + 79.25 R² = 0.76***; r = −0.81*** |
| Digestibility (% of DM) | Digest (% ) = 1.419 × RT + 11.98 R² = 0.567**; r = 0.64** | Digest (% ) = 0.294 × THI + 43.91 R² = 0.323**; r = 0.30** |
| MY (kg/day) | MY (kg/day) = −1.617× RT + 86.68 R² = 0.92**; r = −0.89** | MY (kg/day) = −1.102× THI + 114.5 R² = 0.63***; r = −0.67*** |
| VC (mg/l) | VC (mg/l) = −1.140 × RT + 46.52 R² = 0.87**; r = −0.90** | VC (mg/l) = −0.029× THI + 4.211 R² = 0.72***; r =−0.83*** |