Table 3. Effect of THI on blood profiles of finishing pigs
Item | Treatments | SEM | p-value |
Temperature (°C) | 23–24 | 32–33 | | |
Humidity (%) | 35 | 80 | | |
THI1) | 68 | 87 | | |
WBC (103 /μL) |
D0 | 19.81 | 19.92 | 1.14 | 0.945 |
D14 | 20.26 | 17.88 | 0.53 | 0.013 |
RBC (106 /μL) |
D0 | 6.06 | 6.13 | 0.37 | 0.891 |
D14 | 6.14 | 6.42 | 0.27 | 0.484 |
HGB (g/dL) |
D0 | 10.93 | 10.34 | 0.81 | 0.622 |
D14 | 10.93 | 10.92 | 0.81 | 0.995 |
HCT (%) |
D0 | 32.06 | 30.79 | 1.26 | 0.499 |
D14 | 32.84 | 33.14 | 1.73 | 0.905 |
PLT (103 /μL) |
D0 | 454.32 | 413.42 | 31.67 | 0.388 |
D14 | 474.49 | 403.31 | 26.35 | 0.093 |
MCV (fl) |
D0 | 49.25 | 49.29 | 1.26 | 0.984 |
D14 | 47.37 | 49.24 | 1.75 | 0.478 |
MCH (pg) |
D0 | 15.89 | 15.79 | 0.62 | 0.913 |
D14 | 15.99 | 15.99 | 0.69 | 0.998 |
MCHC (g/dL) |
D0 | 32.24 | 32.34 | 0.60 | 0.915 |
D14 | 32.68 | 32.52 | 0.69 | 0.875 |
The data reported represent the means of 12 replicates (5 pigs/pen).
THI = (1.8 × temperature + 32) – [(0.55 – 0.0055 × relative humidity) × (1.8 × temperature – 26.8)].
THI, temperature-humidity index; WBC, white blood cell; RBC, red blood cell; HGB, hemoglobin; HCT, hematocrit; PLT, platelet; MCV, mean cell volume; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration.