Table 5.

Effect of dietary Polygonatum sibiricum polysaccharide (PSP) on digestive organs' pH of broiler chickens at 21 and 35 d of age.

Parameter	Dietary PSP level, mg/kg			SEM1	P-values
	0	400	800		PSP	Linear	Quadratic
21 d
Ingluvies	6.292a	6.128ab	5.724b	0.155	0.030	0.049	0.718
Proventriculus	4.458	4.558	4.384	0.120	0.858	0.817	0.623
Gizzard	2.618	2.718	2.626	0.074	0.849	0.968	0.577
Duodenum	6.146	6.060	5.952	0.086	0.686	0.633	0.478
Jejunum	6.424	6.336	6.214	0.088	0.656	0.370	0.932
Ileum	6.242	6.196	6.064	0.078	0.657	0.518	0.526
Cecum	7.272	7.250	7.096	0.092	0.728	0.473	0.754
35 d
Ingluvies	6.220	6.290	6.206	0.050	0.783	0.592	0.667
Proventriculus	4.310	4.204	4.148	0.115	0.863	0.731	0.684
Gizzard	3.042	3.106	3.052	0.051	0.878	0.642	0.853
Duodenum	5.986	6.038	5.960	0.053	0.849	0.713	0.671
Jejunum	6.252	6.422	6.282	0.059	0.488	0.270	0.673
Ileum	6.772a	6.364ab	6.100b	0.114	0.039	0.270	0.673
Cecum	6.668a	6.326ab	6.084b	0.121	0.037	0.050	0.834

Means in the same row with different superscripts are significantly different

¹SEM: standard error of means.