Table 7.

Effects of FSPR on serum biochemical indexes of 21 d old broilers.

Item	CON	5% FSPR	8% FSPR	10% FSPR	P-value
TP, g/L	34.03 ± 2.29	42.17 ± 3.17	37.20 ± 2.28	35.20 ± 2.00	0.131
ALB, g/L	18.35 ± 0.64b	20.43 ± 0.87a	17.58 ± 0.38b	17.98 ± 0.56b	0.022
ALT, U/L	5.07 ± 0.31	5.68 ± 0.52	5.95 ± 0.54	5.17 ± 0.29	0.433
AST, U/L	207.67 ± 14.38	229.00 ± 11.13	212.00 ± 14.33	212.50 ± 10.18	0.693
ALP, U/L	4970.67 ± 1132.40	4039.17 ± 722.93	3048.17 ± 465.14	3614.00 ± 468.25	0.449
BUN, mmol/L	0.25 ± 0.02	0.23 ± 0.05	0.22 ± 0.02	0.25 ± 0.05	0.910
GLU, mmol/L	17.12 ± 0.71b	18.76 ± 0.60b	19.17 ± 0.55ab	20.90 ± 0.76a	0.006
TG, mmol/L	0.75 ± 0.09b	1.12 ± 0.06a	0.98 ± 0.13ab	1.28 ± 0.12a	0.014
CHOL, mmol/L	3.08 ± 0.13	3.48 ± 0.69	3.24 ± 0.24	4.41 ± 0.17	0.093
LDL, mmol/L	0.74 ± 0.04b	1.06 ± 0.07a	0.74 ± 0.09b	1.17 ± 0.12a	0.008
HDL, mmol/L	2.15 ± 0.06b	2.65 ± 0.11a	2.07 ± 0.12b	2.74 ± 0.12a	<0.001
IgG, g/L	0.04 ± 0.00	0.04 ± 0.00	0.04 ± 0.00	0.04 ± 0.00	0.107
IgM, g/L	0.02 ± 0.00c	0.04 ± 0.00b	0.08 ± 0.01a	0.09 ± 0.00a	<0.001

FSPR = fermented sweet potato residue; TP = total protein; ALB = albumin; ALT = alanine aminotransferase; AST = aspartate aminotransferase; ALP = alkaline phosphatase; BUN = blood urea nitrogen; GLU = glucose; TG = triglyceride; CHOL = cholesterol; LDL = low-density lipoprotein; HDL = high-density lipoprotein; IgG = immunoglobulin G; IgM = immunoglobulin M.

Data are presented as mean ± SEM (n = 7).

^{a, b, c} Mean values with different small letter superscripts mean significant difference (P < 0.05).