Table 3.

Effect of parity number on IgG, IgM and IgA sera concentrations in Large-White × Landrace sows at 110 d of gestation.

Item	Parity Number					SEM	p-Value
	1	2	3	4	≥5
IgG (mg/mL)	18.4	20.6	23.4	18.9	27.9	1.361	0.195
IgM (mg/mL)	10.4	9.6	10.4	8.6	9.6	0.416	0.610
IgA (mg/mL)	1.5 ab	1.3 ab	1.3 ab	1.0 b	2.3 a	0.123	0.045

^a–b Means within the same row with different superscripts differ significantly at p < 0.05.