Table 1.

Litter size and litter weight in low- and high-reproductive performance groups.

Items	Groupa		P -value
	LP	HP
No. of sows	13	13	-
Backfat thickness, mm
Breeding	15.33 ± 0.74	14.84 ± 0.53	0.599
Farrowing	19.16 ± 0.72	17.82 ± 0.77	0.218
Body weight, kg
Breeding	179.32 ± 4.34	175.31 ± 4.18	0.631
Farrowing	238.77 ± 3.50	231.84 ± 3.91	0.199
Litter size
Total born	9.77 ± 0.53	15.54 ± 0.66	<0.001
Born alive	9.46 ± 0.57	14.31 ± 0.61	<0.001
Dead	0.31 ± 0.13	1.23 ± 0.30	0.013
Litter weight, kg
Total born	16.55 ± 0.64	22.16 ± 0.84	<0.001
Born alive	16.03 ± 0.66	21.21 ± 0.83	<0.001

^a LP, Sows in low-Reproductive Performance Group; HP, Sows in High-Reproductive Performance Group.

Values are mean ± standard error (n = 13).