Table 4. Fecal nitrogen and phosphorus contents according to dietary crude protein and additional Phytase levels

Treatments		Nitrogen (%)	Phosphorus (%)
CP (%)	Phytase (FTU/kg)	Nitrogen (%)	Phosphorus (%)
20	1,000	3.16^bc	1.08^d
	800	3.67^a	1.14^bcd
	500	2.97^bc	1.09^cd
19	1,000	3.05^bc	1.18^abc
	800	3.37^ab	1.12^bcd
	500	3.02^bc	1.13^bcd
18	1,000	2.88^c	1.24^a
18	800	3.07^bc	1.20^ab
500	2.95^bc	1.21^ab
SEM¹		0.275	0.059
CP (%)
20		3.27	1.10^b
19		3.15	1.14^b
18		2.97	1.21^a
SEM³		0.323	0.059
Phytase (ppm)
1,000		3.03b	1.17
800		3.37a	1.15
500		2.98b	1.14
SEM²		0.298	0.076
P-Value
Crude protein		0.09	<0.01
Phytase		<0.01	0.77
Phytase × CP		0.01	<0.01

SEM, standard error of means (n = 4).
SEM, standard error of means (n = 12).
SEM, standard error of means (n = 12).
Means in same rows with different superscripts are significantly different (P<0.01).