Table 2. Body weight, body weight gain, feed intake and feed conversion ratio according to dietary crude protein and additional phytase levels

Phytase (ppm)	CP (%)	IBW (g)	FBW (g)	BWG (g)	FI (g)	FCR
1,000	22	42.1	166.1^ab	124.1^abc	139.4	1.12^abc
	21	42.0	167.2^ab	125.2^ab	133.6	1.07^bc
	20	40.8	155.9^c	115.1^cd	137.9	1.20^a
800	22	42.6	173.8^a	131.3^a	136.8	1.04^c
	21	42.1	164.2^abc	122.1^abcd	126.7	1.04^c
	20	42.2	163.7^bc	121.6^abcd	130.2	1.07^bc
500	22	41.7	157.9^bc	116.2^bcd	132.7	1.15^ab
	21	42.2	167.3^ab	125.1^ab	130.3	1.04^c
	20	41.9	154.8^c	112.9^d	124.0	1.10^bc
SEM¹		-	6.10	5.98	9.14	0.052
Phytase (ppm)
1,000		41.6	163.1	121.5	137.0	1.13^a
800		42.3	167.3	125.0	131.2	1.05^b
500		42.0	160.0	118.0	129.0	1.10^ab
SEM²		-	7.61	7.32	9.05	0.063
Crude protein
22		42.1	166.0^a	123.8^a	136.3	1.10^a
21		42.1	166.2^a	124.1^a	130.2	1.05^b
20		41.6	158.1^b	116.5^b	130.7	1.12^a
SEM³		-	7.23	6.98	9.26	0.064
P-value
Phytase			0.08	0.08	0.09	<0.05
CP		-	<0.05	<0.05	0.22	<0.05
Phytase × CP		-	<0.01	<0.01	0.29	<0.01

SEM, standard error of means (n=36).
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<0.05).
IBW, initial body weight; FBW, final body weight; BWG, body weight gain; FI, feed intake; FCR, feed conversion ratio.