Table 2. Reproductive performance according to sow body weight change during gestation period

Variable	BWC (d 35–70)				SEM	p-value
	Low		High
	BWC (d 70–105)					35–70	70–105	Interaction
	Low	High	Low	High
Reproduction (n)
Total born	14.10	14.43	13.81	14.00	1.214	0.729	0.070	0.908
Stillborn	0.95	1.00	0.69	1.25	0.390	0.326	0.240	0.194
Born alive	13.15	13.43	13.13	12.75	1.154	0.375	0.104	0.573
Weaned piglet	12.25	12.62	12.38	12.08	1.041	0.860	0.578	0.528
Mortality (%)	6.49	5.84	5.61	5.15	2.135	0.046	0.032	0.130
Litter weight (kg)
At birth	15.34	16.43	16.82	15.55	1.564	0.167	0.272	0.136
At weaning	56.17	59.39	58.69	57.39	5.299	0.488	0.341	0.397
ADG (kg/d)	1.95	2.05	1.99	1.99	0.075	0.725	0.038	0.617
Piglet weight (kg)
At birth	1.18	1.23	1.28	1.22	0.068	0.032	0.270	0.115
At weaning	4.58	4.70	4.73	4.77	0.155	0.055	0.240	0.603
ADG (kg/d)	0.16	0.17	0.16	0.17	0.007	0.067	0.071	0.186

BWC, body weight change; ADG, average daily weight gain.