Table 6.

Blood parameters of broiler carcasses fed multiple IgY concentrations at day 42.

Blood analysis	Treatments
	Control (no IgY)	1,500 μg/ml IgY	3,000 μg/ml IgY	4,000 μg/ml IgY
RBCs (cells/μl)	190 ± 4.32	202 ± 9.44	190 ± 6.88	183 ± 1.66**
Hb conc. (g/dl)	15.11 ± 1.27	15.54 ± 0.98	15.32 ± 0.75	16.19 ± 1.38
PCV (%)	31.66 ± 0.65	33.66 ± 1.23	31.66 ± 0.83	30.5 ± 0.19*
H/L ratio	0.51 ± 0.09	0.94 ± 0.98	1.04 ± 1.21	0.69 ± 1.27
Heterophils (cells/μl)	39.50 ± 4.04	43.42 ± 3.66	42.37 ± 3.74	27 ± 7.54**
Lymphocytes (cells/μl)	57.75 ± 3.25	50.42 ± 3.44	47.75 ± 3.87	64.66 ± 6.77
Basophils (cells/μl)	0.25 ± 0.14	0.14 ± 0.12	0.50 ± 0.18	0.0 ± 0.28
Monocytes (cells/μl)	6.50 ± 1.32	5.85 ± 0.99	8.37 ± 0.98	3.33 ± 0.88
Eosinophils (cells/μl)	1.00 ± 0.61	0.14 ± 0.97	1.00 ± 0.38	0.0 ± 0.14

Data were presented as the mean ± SEM and analyzed using one-way ANOVA.

IgY, immunoglobulin Y; RBCs, red blood cells; Hb, hemoglobin; PCV, packed cell volume; H/L, heterophil/lymphocyte ratio.

**p <0.01, *p <0.05.