Table 7. Effect of fermented mixture of bean dregs and wheat bran (FBW) supplementation on blood metabolites of sows and piglets.

Treatment	CON	FBW 3	FBW 6	FBW 9	SEM	p-value
FBW inclusion	0	3	6	9		Treatment	Linear	Quadratic
TP level of sows (g/L)
LD 1	78.94	77.40	77.63	72.30	2.42	0.824	0.412	0.721
LD 19	76.53	69.76	76.43	74.14	1.14	0.109	0.053	0.027
BUN level of sows (mmol/L)
LD 1	4.97	4.22	4.15	3.88	0.20	0.249	0.070	0.487
LD 19	6.82a	5.93b	5.65b	5.78b	0.13	< 0.01	< 0.01	0.024
TP level of piglets (g/L)
LD19	43.48b	47.75a	50.02a	49.06a	0.79	0.037	0.008	0.073
BUN level of piglets (mmol/L)
LD 19	3.72a	2.66b	2.91b	3.16ab	0.11	< 0.01	0.074	< 0.01

^a,bWithin a row, means without a common lowercase superscript differ (p < 0.05).

LD, lactation day; TP, serum total protein; BUN, blood urea nitrogen.