Crumbled or mashed feed had no significant effect on the performance of lactating sows or their offspring

Table 2 Effects of feed processing method on litter performance in lactation sows^a

Items	C^b	M^b	p-value
Litter size, head
Birth piglets No.	11.3 ± 0.5	11.7 ± 0.6	0.6307
Live piglets No.	10.4 ± 0.5	10.4 ± 0.6	1.0000
Weaning piglets No.	9.9 ± 0.4	9.8 ± 0.7	0.8973
Stillbirth rate^c (%)	7.61 ± 2.39	10.93 ± 3.78	0.4672
Survival rate^d (%)	95.19 ± 1.50	94.23 ± 2.33	0.6292
Body weight (kg)
d 4 Before farrowing	263.7 ± 5.0	268.5 ± 5.1	0.5144
d 1 After farrowing	243.6 ± 5.0	246.8 ± 5.4	0.6637
Weaning (d 28)	236.1 ± 5.5	240.1 ± 5.6	0.6187
Body weight loss 1^e	20.2 ± 0.6	21.7 ± 0.7	0.1112
Body weight loos 2^e	7.5 ± 1.0	6.8 ± 1.1	0.6489
Backfat thickness (mm)
d 4 Before farrowing	19.8 ± 0.5	19.9 ± 0.5	0.8932
d 1 After farrowing	19.5 ± 0.4	19.6 ± 0.5	0.8705
Weaning	15.3 ± 0.4	15.1 ± 0.4	0.7521
Backfat thickness loss 1^f	0.3 ± 0.2	0.3 ± 0.2	1.0000
Backfat thickness loos 2^f	4.2 ± 0.3	4.5 ± 0.3	0.4872
Average daily feed intake (g)	6.45 ± 0.01	6.45 ± 0.01	0.9784
Estrus interval (d)	5.3 ± 0.3	5.2 ± 0.2	0.7642

^aAbbreviation: C; Crumble diet, M; Mash diet
^bMean ± Standard error
^cStillbirth rate : (Birth piglets No. – Live piglets No.) / Birth piglets No. × 100
^dSurvival rate : Weaning piglets No. / Live piglets No. × 100
^eBody weight loss: 1, d 4 Before farrowing to d 1 After farrowing; 2, d 1 After farrowing to weaning
^fBackfat thickness loss: 1, d 4 Before farrowing to d 1 After farrowing; 2, d 1 After farrowing to weaning

ISSN: 2055-0391