Table 4. Effects of dietary coated CuSO₄ and ZnO on blood profiles and immune responses of weaned pigs¹⁾.

Item2)	CON	T1	T2	T3	SEM	p-value
WBC (×103/µL)
Day 1	13.88	13.56	12.18	14.88	2.48	0.474
Day 7	23.08	19.76	18.70	20.42	1.31	0.074
Day 14	24.70	23.32	19.20	19.14	2.53	0.459
RBC (×106 /µL)
Day 1	4.70	4.94	4.54	4.65	0.18	0.355
Day 7	6.00	6.33	6.19	6.10	0.41	0.984
Day 14	6.45	6.50	6.70	6.74	0.32	0.325
HCT (%)
Day 1	25.08	26.02	25.02	24.92	0.87	0.885
Day 7	30.66	29.74	29.66	29.54	2.05	0.985
Day 14	35.56	30.30	29.26	29.56	1.85	0.084
TNF-α (pg/mL)
Day 1	141.21	131.53	125.35	121.35	30.25	0.506
Day 7	108.81	78.57	77.79	78.97	10.08	0.095
Day 14	104.99	84.44	77.27	81.43	38.91	0.550
Cortisol (ng/mL)
Day 1	115.05	118.74	107.32	105.83	18.64	0.691
Day 7	122.98	81.18	83.77	90.17	13.84	0.063
Day 14	105.50	98.64	92.11	94.88	17.39	0.330
IgG (mg/mL)
Day 1	5.37	4.86	4.91	5.24	0.71	0.721
Day 7	3.72	3.84	3.77	3.94	1.01	0.650
Day 14	3.86	4.55	4.79	4.75	0.31	0.076
IgM (mg/mL)
Day 1	1.36	1.57	1.15	1.43	0.27	0.413
Day 7	1.35	1.37	1.44	1.56	0.17	0.361
Day 14	1.23	1.62	1.60	1.51	0.13	0.067
IgA (mg/mL)
Day 1	0.23	0.36	0.25	0.26	0.08	0.385
Day 7	0.32	0.26	0.28	0.30	0.11	0.857
Day 14	0.40	0.65	0.46	0.55	0.14	0.354

¹⁾Each value is the mean of 6 replicates (1 pig/pen).

²⁾CON, basal weaner diet based on corn and soybean meal; T1,= CON + 2,500 ppm standard ZnO; T2,= CON + 100 mg/kg dietary coated CuSO₄ and 100 mg/kg dietary coated ZnO; T3, CON + 200 mg/kg dietary coated CuSO₄ and 200 mg/kg dietary coated ZnO; WBC, white blood cell; RBC, red blood cell; HCT, hematocrit; TNF-α, tumor necrosis factor-alpha; IgG, immunoglobulin G; IgM, immunoglobulin M; IgA, immunoglobulin A.