Table 13. The effects of using pomegranate peel powder, oxidized oil and alpha-tocopherol in diets on immunoglobulin in broiler chickens

Treatment			Traits
Treatment			IgG	IgM	Total immunoglobulin
Main effect
Pomegranate peel (%)
0			2.81^b	1.89^b	4.70^b
4			2.99^a	2.01^a	5.01^a
8			2.79^b	1.87^b	4.67^b
SEM			0.05	0.03	0.06
Oxidized oil (%)
0			2.92^a	1.97^a	4.89^a
2			2.92^a	1.99^a	4.91^a
4			2.75^b	1.82^b	4.57^b
SEM			0.05	0.03	0.06
Alpha-tocopherol (mg/kg)
0			2.83	1.92	4.76
200			2.89	1.93	4.83
SEM			0.04	0.02	0.05
Interaction effects
Pomegranate peel × oxidized oil × alpha-tocopherol
0	0	0	2.87	1.87	4.75
0	0	200	2.93	1.90	4.83
0	2	0	2.87	1.96	4.83
0	2	200	2.85	2.02	4.88
0	4	0	2.61	1.82	4.43
0	4	200	2.72	1.77	4.50
4	0	0	2.99	2.03	5.03
4	0	200	3.07	2.09	5.17
4	2	0	3.00	2.08	5.08
4	2	200	3.13	2.08	5.21
4	4	0	2.84	1.91	4.75
4	4	200	2.92	1.88	4.80
8	0	0	2.81	1.91	4.72
8	0	200	2.85	2.00	4.85
8	2	0	2.82	1.90	4.72
8	2	200	2.85	1.91	4.76
8	4	0	2.70	1.79	4.49
8	4	200	2.72	1.74	4.47
SEM			0.13	0.07	0.14
p-value
Pomegranate peel			0.0089	0.0030	0.0001
Oxidized oil			0.0271	0.0002	0.0001
Alpha-tocopherol			0.3019	0.6792	0.2465
Pomegranate peel × oxidized oil			0.9577	0.6590	0.9642
Pomegranate peel × alpha-tocopherol			0.8915	0.9972	0.9254
Oxidized oil × alpha-tocopherol			0.9874	0.5090	0.8549
Pomegranate peel × oxidized oil × alpha-tocopherol			0.9876	0.9779	0.9968

Means in columns with same superscript do not differ significantly p < 0.05.
IgG, immunoglobulin G; IgM, immunoglobulin M.