Table 3.

Influence of PHP on the serum biochemical indices of chicks

Day of age	Items	Groups				P-value
		A	B	C	D
14	TP, g/L	24.08 ± 3.33b	31.88 ± 1.14a	28.48 ± 1.81a	29.48 ± 3.02a	0.006
	ALB, g/L	9.30 ± 0.92c	12.80 ± 0.29a	11.40 ± 0.58b	11.65 ± 0.94b	<0.001
	GLU, mmol/L	7.97 ± 2.24	7.05 ± 2.37	7.79 ± 0.97	7.83 ± 1.48	0.885
	TG, mmol/L	0.51 ± 0.21	0.43 ± 0.12	0.44 ± 0.03	0.39 ± 0.07	0.476
	TC, mmol/L	3.06 ± 0.09	2.78 ± 0.30	3.06 ± 0.18	2.86 ± 0.16	0.273
21	TP, g/L	24.38 ± 3.15b	33.93 ± 4.47a	35.68 ± 2.37a	34.60 ± 1.44a	0.001
	ALB, g/L	9.68 ± 0.86c	11.97 ± 1.14b	12.55 ± 1.12ab	13.73 ± 0.38a	<0.001
	GLU, mmol/L	11.47 ± 2.41	13.23 ± 0.17	11.92 ± 0.64	12.06 ± 0.28	0.412
	TG, mmol/L	0.38 ± 0.14	0.43 ± 0.09	0.45 ± 0.06	0.50 ± 0.02	0.383
	TC, mmol/L	2.73 ± 0.41	2.32 ± 0.08	2.57 ± 0.39	2.58 ± 0.01	0.375
28	TP, g/L	37.40 ± 1.44b	32.60 ± 0.79b	42.53 ± 0.25a	37.70 ± 4.55ab	0.012
	ALB, g/L	13.02 ± 0.66b	11.66 ± 0.97c	14.45 ± 0.33a	12.37 ± 1.12bc	0.001
	GLU, mmol/L	11.41 ± 1.00a	9.28 ± 0.34b	9.95 ± 0.56b	8.78 ± 0.99b	0.004
	TG, mmol/L	0.39 ± 0.07	0.43 ± 0.07	0.34 ± 0.02	0.34 ± 0.06	0.178
	TC, mmol/L	3.43 ± 0.34a	3.11 ± 0.63ab	2.64 ± 0.39b	3.27 ± 0.30ab	0.146
35	TP, g/L	29.13 ± 0.93c	33.57 ± 2.03b	39.13 ± 2.64a	35.20 ± 1.20b	0.001
	ALB, g/L	12.93 ± 1.01	12.60 ± 1.28	12.48 ± 1.37	11.83 ± 0.79	0.633
	GLU, mmol/L	9.18 ± 1.23	9.41 ± 0.99	9.84 ± 0.65	8.82 ± 1.52	0.563
	TG, mmol/L	0.38 ± 0.06	0.39 ± 0.03	0.41 ± 0.03	0.40 ± 0.06	0.904
	TC, mmol/L	2.80 ± 0.52	2.93 ± 0.56	2.86 ± 0.02	2.88 ± 0.27	0.974

^a,b,cMeans with different superscripts within the same row differ significantly (P < 0.05).