Table 3.

Effects of dietary chitosan on serum GH and IGF-I in weaned pigs¹

Item	Age	Levels of dietary chitosan mg/kg					SEM	p-value
		0	100	500	1,000	2,000		Linear	Quadratic
GH (ng/mL)	14 d	4.410	4.705	5.035	4.694	4.505	0.15	0.565	0.082
	28 d	4.266	4.366	4.806	4.440	4.187	0.15	0.401	0.087
IGF-1 (ng/mL)	14 d	152.601	155.381	166.699	156.385	152.979	10.14	0.802	0.747
	28 d	156.640	158.775	160.164	158.679	157.733	10.72	0.995	0.980

¹The number of observations for each mean value was six (n = 6).