Table 4.

Effects of different amounts of wheat aleurone inclusion in gestation diets on sows’ reproductive performance and litter performance.

Item	Diet1			SEM	P-value2
	CON	15%WA	30%WA		Diet	Linear	Quadratic
No. of sows	22	21	23
Average sow parity	4.5	4.5	4.8
Total piglets born3	15.6	16.1	15.3	0.5	0.92	0.79	0.78
Piglets born alive3	13.3	14.8	13.7	0.4	0.53	0.67	0.30
Piglets stillborn3	2.0	1.1	1.3	0.2	0.14	0.12	0.08
Litter weight alive at parturition3, kg	18.7	20.0	18.6	0.5	0.45	0.94	0.47
Average weight of piglets born alive3, kg	1.4	1.4	1.4	0.03	0.66	0.68	0.85
No. of pigs per litter3,4
After cross-foster	12.1	11.7	11.5	0.1	0.29	0.11	0.26
On day 7	11.4	10.9	10.9	0.1	0.20	0.16	0.25
On day 14	11.0	10.5	10.7	0.2	0.42	0.60	0.54
On day 21	10.6	10.4	10.4	0.2	0.53	0.61	0.84
Piglet mean BW4, kg
After cross-foster	1.6	1.5	1.5	0.04	0.95	0.78	0.95
On day 7	3.0	3.0	3.0	0.1	0.87	0.95	0.97
On day 14	5.0	4.9	4.8	0.1	0.29	0.44	0.74
On day 21	6.7	6.7	6.6	0.1	0.54	0.28	0.53
Piglet average daily gain4, g/d
Day 1 to 73	203.3	214.4	199.1	5.7	0.49	0.70	0.56
Day 7 to 14	269.8	271.5	259.2	6.0	0.58	0.49	0.71
Day 14 to 21	260.4	260.7	240.7	6.3	0.34	0.14	0.25
Day 1 to 21	248.6	247.2	237.4	4.4	0.46	0.24	0.76
Litter weight4, kg
After cross-foster	18.7	18.2	17.4	0.4	0.42	0.19	0.42
On day 7	33.5	32.8	34.0	0.8	0.64	0.40	0.66
On day 14	52.0	52.6	52.4	1.2	0.92	0.51	0.80
On day 21	70.1	70.5	69.0	1.7	0.62	0.38	0.68

¹CON, control diet group; 15% WA, 15% wheat aleurone diet group; 30% WA, 30% wheat aleurone diet group.

²Linear (L) and quadratic (Q) effects of inclusion amounts of wheat aleurone were contrasted.

³Results were analyzed using the Kruskal–Wallis test. Values are means ± Pooled SEM.

⁴Number of sows in CON, 15% WA and 30% WA is 19, 21 and 21, respectively.