Soya saponin improves egg-laying performance and immune function of laying hens

Table 10 The results of serum biochemical index at the end of the trial (n = 8)

Item	Control	50 ppm SS	500 ppm SS	P-value
TP, g/L	32.63 ± 1.27	32.46 ± 0.78	32.47 ± 0.76	0.927
ALB, g/L	12.57 ± 0.98	11.88 ± 0.88	12.25 ± 1.01	0.377
Globulin, g/L	19.70 ± 0.70^a	20.58 ± 0.74^b	20.22 ± 0.91^ab	0.106
ALT, U/L	14.02 ± 1.55^a	13.44 ± 1.54^a	15.56 ± 1.07^b	0.019
AST, U/L	111.80 ± 8.07	111.70 ± 8.12	117.69 ± 14.38	0.447
ALP, U/L	313.08 ± 21.85^a	369.94 ± 13.68^b	379.88 ± 28.54^b	< 0.001
GLU, mmol/L	12.15 ± 0.15	12.23 ± 0.33	12.19 ± 0.50	0.904

At the end of the trial, 8 birds from each treatment were selected to obtain wing vein blood and harvest serum. The levels of serum biochemical index were measured. The data in Table 10 different superscript letters indicate significant difference (P < 0.05); same superscript letters indicate no difference (P > 0.1), the same below

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