Table 7.

Effect of dietary supplementation of mannan oligosaccharide to sow or piglet on secretory immunoglobulin A (sIgA) in piglet jejunum mucosa (mean ± SD)¹

	Dietary treatment2
	Sow diets		Piglet diets		Piglet treatments				P-value3
Item4	sCON	sMOS	pCON	pMOS	sCON-pCON	sCON-pMOS	sMOS-pCON	sMOS-pMOS	S	P	S×P
No.	12	12	12	12	6	6	6	6
sIgA, mg/g pro.	4.97 ± 0.74a	6.87 ± 1.12b	5.61 ± 1.44	6.16 ± 1.23	4.48 ± 0.50	5.56 ± 0.52	6.98 ± 0.76	6.77 ± 1.49	0.04	0.61	0.45

¹Sows were fed mannan oligosaccharide (MOS, Actigen, Alltech, Inc., Nicholasville, KY) from the 86th day of gestation until the end of lactation (d 20 post-farrowing), and piglets were fed it from day 7 to day 35 of age.

²Dietary treatments: sCON = sows fed control diet; sMOS = sows fed diet supplementation with 400 mg kg⁻¹ MOS; pCON = piglets fed control diet; pMOS = piglets fed diet supplementation with 800 mg kg⁻¹ MOS; sCON-pCON = sows fed control diet and piglets fed control diet; sCON-pMOS = sows fed control diet and piglets fed diet supplementation with 800 mg kg⁻¹ MOS; sMOS-pCON = sows fed diet supplementation with 400 mg kg⁻¹ MOS and piglets fed control diet; sMOS-pMOS = sows fed diet supplementation with 400 mg kg⁻¹ MOS and piglets fed diet supplementation with 800 mg kg⁻¹ MOS.

³S, sow dietary treatment; P, piglet dietary treatment; and S×P, the interaction effect of the sow and piglet dietary treatments.

⁴No., number of piglets; sIgA, mg/g pro., secretory immunoglobulin A concentration (mg/g protein) in piglet jejunum mucosa on day 35 of age.

^a,bMeans in the same row with different superscripts differ (P < 0.05) between the same dietary treatment.