Table 6. Pre-weaning hematological parameters of control heifers (CON) and heifers supplemented with a blend of essential oils blend (BEO) in milk replacer during pre-weaning.
| Item1 | Treatment | SEM | P–value4 | |||
|---|---|---|---|---|---|---|
| CON2 (n = 15) | BEO3 (n = 14) | T | W | T x W | ||
| RBC (x 106/μL) | 8.02 | 7.95 | 0.88 | 0.86 | 0.63 | 0.87 |
| PCV (%) | 35.53 | 35.21 | 5.05 | 0.85 | 0.11 | 0.69 |
| Hb (q/dL) | 11.07 | 10.94 | 1.61 | 0.81 | 0.14 | 0.73 |
| MCV (fL) | 44.74 | 44.51 | 2.94 | 0.74 | <0.001 | 0.51 |
| MCHC (%) | 31.10 | 31.14 | 0.76 | 0.87 | 0.15 | 0.99 |
| Total leukocytes (/μL) | 10,908.45 | 11,200.78 | 2,630.0 | 0.76 | 0.19 | 0.22 |
| Basophils (/μL) | 2.14 | 0.00 | 1.03 | <0.001 | <0.001 | <0.001 |
| Eosinophils (/μL) | 68.40 | 143.90 | 0.66 | 0.24 | <0.001 | 0.36 |
| Band neutrophil (/μL) | 31.76 | 26.22 | 5.69 | 0.68 | 0.83 | 0.31 |
| Segmented neutrophils (/μL) | 5,300.63 | 5,286.56 | 1,700.0 | 0.98 | <0.001 | 0.78 |
| Lymphocytes (/μL) | 4,837.40 | 5,082.82 | 1,120.0 | 0.66 | <0.001 | 0.01 |
| Monocytes (/μL) | 421.60 | 466.00 | 247.0 | 0.48 | 0.01 | 0.29 |
| Platelet (x 103/μL) | 410.41 | 353.70 | 108.0 | 0.04 | <0.001 | 0.10 |
| Plasmatic protein (g/dL) | 6.03 | 6.03 | 0.72 | 1.00 | 0.17 | 0.40 |
| PLR | 0.08 | 0.08 | 0.03 | 0.91 | 0.02 | 0.04 |
| NLR | 1.26 | 1.46 | 0.03 | 0.60 | <0.001 | 0.55 |
1RBC: red blood cell, PCV: packed cell volume, Hb: hemoglobin, MCV: mean corpuscular volume, MCHC: mean corpuscular hemoglobin concentration, PLR: platelet lymphocyte ratio, NLR: neutrophils lymphocytes ratio.
2CON = control
3BEO = 1 g/calf/d blend of essential oil.
4T = treatment effect; W = week effect; T x W = treatment by week interactions.