Table 6.

Overall growth performance of pigs fed diets containing different concentrations of phytate and phytase dose^1,2

Item	Initial body weight, kg	ADG, kg	ADFI, kg	G:F	Final body weight, kg
0.23% phytate-bound P3
0 PhyG, FTU/kg	12.67	0.375	0.839	0.441	20.18
500 PhyG, FTU/kg	12.35	0.511	0.965	0.530	22.56
1,000 PhyG, FTU/kg	12.21	0.571	1.003	0.569	23.62
2,000 PhyG, FTU/kg	12.65	0.533	0.961	0.559	23.31
4,000 PhyG, FTU/kg	12.47	0.560	0.975	0.574	23.67
0.29% phytate-bound P4
0 PhyG, FTU/kg	12.99	0.442	0.921	0.479	21.82
500 PhyG, FTU/kg	12.90	0.589	1.051	0.559	24.69
1,000 PhyG, FTU/kg	12.66	0.606	1.023	0.596	24.78
2,000 PhyG, FTU/kg	12.79	0.605	1.045	0.578	24.89
4,000 PhyG, FTU/kg	12.44	0.593	0.987	0.604	24.30
0.35% phytate-bound P5
0 PhyG, FTU/kg	12.72	0.457	0.959	0.479	21.86
500 PhyG, FTU/kg	12.91	0.543	0.986	0.551	23.77
1,000 PhyG, FTU/kg	13.16	0.624	1.081	0.576	25.64
2,000 PhyG, FTU/kg	13.18	0.626	1.071	0.587	25.68
4,000 PhyG, FTU/kg	12.86	0.589	1.040	0.563	24.63
SEM	1.43	0.04	0.06	0.02	2.01
P-value
Phytate-bound P	0.580	0.004	0.004	0.075	<0.001
PhyG	0.993	<0.001	<0.001	<0.001	<0.001
Phytate-bound P × PhyG	0.999	0.824	0.733	0.944	0.881

¹Data are least squares means of eight observations per treatment.

²ADG, average daily gain; ADFI, average daily feed intake; G:F, gain to feed ratio; FTU, phytase units.

³Linear and quadratic increase for ADG, G:F, and final body weight: P < 0.05; Quadratic increase for ADFI: P < 0.05.

⁴Linear and quadratic increase for ADG and G:F: P < 0.05; Quadratic increase for ADFI and final body weight: P < 0.05.

⁵Linear and quadratic increase for ADG, G:F, and final body weight: P < 0.05; Quadratic increase for ADFI: P < 0.05.