Table 4. Effects of phytase supplementation on the fecal excretion of broilers (n=6)

Variable	PC	NC	NC500	NC1000	NC1500	SEM	p-value
RE (g)	983	977	962	949	968	16.5	0.978
DE (g)	185	185	182	177	170	2.87	0.390
MS (g)	798	792	780	773	798	16.5	0.987
CP (g)	68.6^a	62.3^ab	58.2^bc	58.0^bc	53.5^c	1.42	0.006
P (g)	3.01^a	2.21^bc	2.72^ab	2.39^bc	2.03^c	0.098	0.006

Means within the column with no common superscripts differ significantly (p < 0.05).
PC, positive control; NC, negative control; NC500, NC + phytase at 500 FTU/kg; NC1000, NC + phytase at 1,000 FTU/kg; NC1500, NC + phytase at 1,500 FTU/kg; RE, raw excreta; DE, dry excreta; MS, moisture; CP, crude protein; P, phosphorus.