Table 7.

Effect of APO on blood cytokine levels of broiler breeders with different egg laying rates.

Item1		IL-1β	IL-6	IL-8	IL-10	IgA	IgG
Laying	APO
AR	−	30.31	5.97	33.04	8.53	67.30	11.72
AR	+	24.32	6.08	26.35	8.85	64.41	34.56
LR	−	30.56	6.46	29.49	8.78	68.61	22.81
LR	+	27.61	6.09	25.78	8.31	53.54	40.23
SEM		2.07	0.60	3.10	0.87	6.00	13.57
P-value		0.09	0.92	0.29	0.95	0.179	0.42
Main effect
Laying	AR	27.32	6.03	29.70	8.69	65.86	23.14
	LR	29.10	6.27	27.64	8.54	61.08	31.52
APO	−	30.45	6.21	31.27	8.65	67.96	17.26
	+	25.96	6.08	26.07	8.58	58.97	37.39
SEM		1.39	0.40	2.08	0.58	3.94	8.76
P-value
Laying		0.35	0.65	0.46	0.85	0.40	0.62
APO		0.03	0.81	0.05	0.93	0.28	0.12
Laying∗APO		0.42	0.66	0.59	0.61	0.26	0.83

Abbreviations: APO, 200 mg/kg apple pectic oligosaccharide; AR, average egg laying rate; IgA, immunoglobulin A; IgG, immunoglobulin G; IL-1β, interleukin-1β; IL-6, interleukin-6; IL-8, interleukin-8; IL-10, interleukin-10; LR, low egg laying rate.

¹Each mean represents 2 layers/replicate, 8 replicates/treatment.