Table 6. Effects of different farrowing facilities on piglet mortality in primiparous sows.

Items	CON	LFP	SEM	p-value
Mortality (%)
Day 1	0.00	1.01	0.51	0.341
Day 3	1.66	2.53	1.43	0.681
Day 7	4.41	4.37	1.76	0.989
Day 21	5.29	8.21	2.87	0.481
Day 28	0.91	0.83	0.87	0.948
Overall	12.28	16.95	3.61	0.317
Primary cause of death (n)
Crushed	0.55	1.09	0.25	0.137
Starvation/hypothermia	0.45	0.55	0.27	0.811
Unknown	0.27	0.09	0.12	0.293

Data represents means based on eleven primiparous sows per treatment.

CON, conventional farrowing facilities; LFP, loosed farrowing pens; SEM, standard error of means.