Table 3.

Effect of dietary Polygonatum sibiricum polysaccharide (PSP) on growth performance of broiler chickens from 1 to 35 d of age.

Parameter1	Dietary PSP level, mg/kg			SEM2	P-values
	0	400	800		PSP	Linear	Quadratic
BWG, g.bird/d
1–21 d	32.88	32.36	34.09	0.353	0.116	0.146	0.122
22–35 d	65.46b	70.09a	69.68a	0.715	0.003	0.004	0.029
1–35 d	45.91b	47.45ab	48.33a	0.412	0.038	0.013	0.652
FI, g.bird/d
1–21 d	46.89	47.20	47.05	0.118	0.599	0.592	0.399
22–35 d	129.4	128.4	129.5	0.346	0.357	0.848	0.163
1–35 d	79.88	79.66	80.04	0.176	0.709	0.722	0.463
FCR, g feed.g/gain
1–21 d	1.427	1.460	1.382	0.016	0.134	0.234	0.090
22–35 d	1.976a	1.833b	1.861b	0.022	0.008	0.013	0.027
1–35 d	1.740a	1.680ab	1.658b	0.016	0.010	0.041	0.555
EPEI
1–21 d	245.8	237.0	262.8	5.335	0.130	0.180	0.119
22–35 d	597.4b	666.1a	667.8a	12.74	0.021	0.014	0.139
1–35 d	271.4b	290.7ab	299.8a	5.281	0.049	0.026	0.610

Means in the same row with different superscripts are significantly different.

¹BWG: body weight gain; FI: feed intake; FCR: feed conversion ratio, EPEI: European production efficiency index.

²SEM: standard error of means. Values with different superscript letters are statistically different (P < 0.05).