. 2021 Dec 3;101(4):101632. doi: 10.1016/j.psj.2021.101632

Table 4.

Effects of EO-PGS on plasma immunoglobulin and cytokine concentration of laying hens.¹^,²

Items	EO-PGS supplemental level/(g/kg)				SEM	P-value
Items	0	0.5	0.75	1.0	SEM	P-value
IgA, μg/mL	35.62	32.66	35.33	37.02	0.89	0.385
IgG, μg/mL	387.39^b	388.53^b	442.28^a	457.17^a	8.39	<0.001
IgM, μg/mL	32.01	31.51	31.24	33.86	0.52	0.283
IL-2, ng/L	123.60^b	126.14^b	149.01^a	147.24^a	2.89	<0.001
TNF-α, ng/L	22.90	19.66	20.61	21.98	0.55	0.157

Means differences between this group and the control group was different at P < 0.05.

IgA, immunoglobulin A; IgG, immunoglobulin G; IgM, immunoglobulin M; IL-2, interleukin-2; TNF-α, tumor necrosis factor.