Table 6.

Antioxidant and immunological indices of growing Japanese quail as affected by dietary lemongrass essential oil (LGEO).

	LGEO (mg/kg diet)						P value3
Items1	0	150	300	450	600	SEM2	Linear	Quadratic
IgM (mg/dL)	0.42	0.63	0.86	0.88	0.61	0.072	0.0340	0.0033
IgG (mg/dL)	0.68	1.09	1.31	1.36	1.05	0.051	0.0003	<0.0001
IgA (mg/dL)	0.48	0.72	0.91	0.93	0.67	0.033	0.0016	<0.0001
Lysozyme (U/mL)	0.08	0.23	0.28	0.23	0.13	0.009	0.0111	<0.0001
SOD (U/mL)	0.09	0.23	0.29	0.24	0.24	0.013	<0.0001	<0.0001
MDA (nmol/mL)	0.42	0.23	0.17	0.20	0.23	0.009	<0.0001	<0.0001
TAC (ng/mL)	0.07	0.21	0.28	0.20	0.12	0.021	0.3655	0.0002
CAT (ng/mL)	0.08	0.23	0.29	0.22	0.18	0.011	0.0006	<0.0001
GSH (ng/mL)	0.09	0.19	0.31	0.24	0.19	0.015	0.0009	<0.0001

¹Abrreviations: CAT, catalase; y; GSH, reduced glutathione; IgM, IgG and IgA, immunoglobulin M, G, and A; MDA, malondialdehyde; SOD, superoxide dismutase; TAC, total antioxidant capacit.

²Standard error means.

³Linear and quadratic effects.