Table 3. The effect of dietary glucose oxidase supplementation on reproduction performance in lactating sows

Items	CON1)	GO1	GO2	GO3	SEM	p-value2)
						Linear	Quadratic
Parity	2.8	2.8	2.8	2.8	0.4	1.000	1.000
Litter size
Total birth (head)	12.4	11.8	12.0	12.4	0.7	0.953	0.512
Total alive (head)	11.8	11.6	11.8	11.6	0.8	0.917	1.000
Stillbirth (head)	0.6	0.2	0.2	0.6	0.3	1.000	0.219
Mummification, (head)	0.0	0.0	0.0	0.2	0.1	0.205	0.337
SUR1 (%)	94.8	98.3	98.5	93.6	2.9	0.791	0.177
Body weight (kg)
Before farrowing	225.9	224.8	223.8	222.9	4.7	0.638	0.986
After farrowing	208.4	206.1	205.6	205.5	4.9	0.681	0.824
Weaning	192.6	190.7	190.3	191.2	5.0	0.836	0.784
Body weight loss 13)	17.5	18.7	18.3	17.4	1.5	0.907	0.518
Body weight loss 23)	15.8a	15.4ab	15.3ab	14.3b	0.4	0.020	0.470
Backfat thickness (mm)
Before farrowing	18.8	18.6	18.4	18.6	0.9	0.847	0.829
After farrowing	17.8	17.4	17.6	17.6	1.0	0.929	0.843
Weaning	15.8	16.0	16.0	16.2	0.9	0.758	1.000
Backfat thickness loss 14)	1.0	1.2	0.8	1.0	0.2	0.641	1.000
Backfat thickness loss 24)	2.0	1.4	1.6	1.4	0.3	0.309	0.563
Body condition score
Before farrowing	3.1	3.4	3.3	3.2	0.2	0.790	0.2476
After farrowing	3.1	3.3	3.3	3.0	0.1	0.629	0.090
Weaning	2.7	2.8	2.8	2.7	0.1	1.000	0.469
ADFI (kg)
Pregnant	2.7	2.7	2.7	2.8	0.03	0.752	0.410
Lactation	7.1	7.2	7.1	7.3	0.05	0.261	0.436
Estrus interval (d)	4.0	3.8	3.8	3.4	0.4	0.350	0.813

CON, basal diet; GO1, basal diet + 200 U GOx/kg; GO2, basal diet + 300 U GOx/kg; GO3, basal diet + 400 U Gox/kg.
Means in the same row with different superscript differ significantly (p < 0.05).
Body weight difference: 1, 2 weeks Before farrowing to After farrowing; 2, After farrowing to Weaning.
Backfat thickness difference: 1, 2 weeks Before farrowing to After farrowing; 2, After farrowing to Weaning.
SUR1, survival rate of number of alive pigs per number of totals born pigs; ADFI, average daily feed intake.