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.