Table 5.

Effects of dietary supplementation with SAA on activity of digestive enzymes in weaning piglets^a

Item	Dietary SAA, %					SEM	Contrast, P<
	0.53	0.63	0.74	0.85	0.96		Linear	Quadratic
day 0 to day 7
ALP, U/mg of protein
Jejunum	245.40	172.38	217.87	238.80	242.87	24.52	0.814	0.054
Ileum	220.26	163.17	219.41	203.98	144.65	38.51	0.989	0.291
Lactase, U/mg of protein
Jejunum	17.61	9.82	15.58	30.49	25.06	3.46	0.004	0.003
Ileum	1.43	2.10	2.08	2.05	2.36	0.26	0.207	0.278
Sucrase, U/mg of protein
Jejunum	27.33	14.47	28.66	45.76	37.23	6.31	0.032	0.027
Ileum	12.40	8.52	7.71	9.21	8.16	1.83	0.579	0.576
Maltase, U/mg of protein
Jejunum	57.62	53.97	65.98	80.29	62.91	7.22	0.311	0.273
Ileum	48.66	27.77	47.08	41.49	22.84	9.93	0.894	0.058
day 0 to day 14
ALP, U/mg of protein
Jejunum	170.81	92.07	160.23	83.73	75.47	27.47	0.796	0.040
Ileum	228.17	231.71	327.07	208.73	281.09	49.15	0.177	0.474
Lactase, U/mg of protein
Jejunum	18.62	15.45	19.92	21.78	14.64	4.19	0.791	0.792
Ileum	4.02	3.69	6.31	6.46	5.05	1.80	0.748	0.748
Sucrase, U/mg of protein
Jejunum	9.70	7.09	10.62	10.50	6.70	2.22	0.718	0.718
Ileum	51.38	57.36	57.40	75.28	66.94	16.53	0.856	0.865
Maltase, U/mg of protein
Jejunum	36.48	26.25	51.24	35.92	21.31	4.61	0.014	0.001
Ileum	38.88	34.97	44.21	28.31	42.30	12.13	0.688	0.559

^aValues are means of eight individually caged pigs.