Table 6.

Effect of amylase supplementation and growth phase on amylase activity and mRNA expression of glucose transporters in the jejunal tissue of broiler chickens.¹

Growth phase day after hatching:	day 0 to 11		day 11 to 21		day 21 to 42		day 42 to 56		SEM	P-value
Amylase, KNU/kg:	0	80	0	80	0	80	0	80		Amylase	Phase	A × P
Amylase activity
Duodenum, u/mL	174.20	258.80	126.30	131.50	91.90	122.80	143.90	178.60	5.081	<0.001	<0.001	<0.001
Pancreas, u/mg	33.60	17.54	17.80	19.18	28.60	16.43	17.70	11.30	1.821	<0.001	<0.001	<0.001
Glucose markers
GLUT-1	0.83	0.72	0.60	1.20	1.35	1.07	0.99	1.01	0.157	0.623	0.096	0.058
GLUT-2	1.13	1.35	1.12	0.87	1.06	0.67	1.27	0.93	0.269	0.336	0.555	0.713
SGLT-1	0.64	1.08	1.14	1.02	0.80	0.86	0.98	0.88	0.325	0.768	0.873	0.772

¹Data are least square means of 8 replicates cages; GLUT, glucose transporter; SGLT-1, sodium-dependent glucose cotransporter 1.