Table 2. Effect of light intensity on blood cell composition of broilers at 35 d of age
Parameters | Light intensity (lx) | SEM | p-value |
5 | 20 | 35 | 50 |
Leukocyte | | | | | | |
WBC (K/μL) | 16.18 | 15.67 | 14.49 | 12.77 | 1.032 | 0.111 |
HE (K/μL) | 3.97 | 3.81 | 3.30 | 3.53 | 0.325 | 0.483 |
Ly (K/μL) | 9.88 | 9.79 | 9.28 | 9.74 | 0.562 | 0.878 |
HE/LY | 0.40a | 0.38ab | 0.36ab | 0.34b | 0.046 | 0.044 |
MO (K/μL) | 1.79 | 1.61 | 1.51 | 2.43 | 0.529 | 0.612 |
EO (K/μL) | 0.43 | 0.41 | 0.35 | 0.30 | 0.046 | 0.203 |
BA (K/μL) | 0.10 | 0.09 | 0.06 | 0.06 | 0.015 | 0.176 |
Erythrocyte | | | | | | |
RBC (K/μL) | 2.13 | 2.12 | 2.14 | 2.09 | 0.047 | 0.905 |
Hb (g/dL) | 8.13 | 8.10 | 8.11 | 7.81 | 0.156 | 0.424 |
HCT (%) | 21.95 | 21.77 | 21.40 | 20.91 | 0.452 | 0.389 |
MCV (fL) | 102.93 | 102.54 | 100.29 | 100.16 | 1.137 | 0.196 |
MCH (g/dL) | 38.20 | 38.19 | 38.02 | 37.41 | 0.518 | 0.673 |
MCHC (g/dL) | 37.12 | 37.24 | 37.91 | 37.38 | 0.544 | 0.747 |
Platelets | 16.40 | 16.50 | 15.80 | 16.60 | 1.699 | 0.987 |
Means in same rows with different superscripts are significantly different (p < 0.05).
WBC, white blood cell; HE, heterophil; Ly, lymphocyte; HE/LY, heterophil/lymphocyte; MO, monocytes; EO, eosinophils; BA, basophils; RBC, red blood cell; Hb, hemoglobin; HCT, hematocrit; MCV, mean corpuscular volume; MCH, mean corpuscular hemoglobin; MCHC, mean corpuscular hemoglobin concentration.