Table 3.

Analyzed nutrient composition of experimental diets containing 0.23% phytate-bound P, as-fed basis

	PhyG, FTU1/kg					PhyB, FTU/kg 1,000
Item	0	500	1,000	2,000	4,000
Dry matter, %	88.89	88.83	89.15	88.70	88.73	88.61
Ash, %	4.20	4.23	4.22	4.17	4.23	4.39
Gross energy, kcal/kg	4,009	3,994	4,031	4,003	4,021	4,009
Crude protein, %	16.14	15.93	16.04	15.93	16.18	16.44
AEE1, %	6.07	6.01	6.27	6.44	6.72	6.76
Soluble dietary fiber, %	1.4	0.6	1.2	0.8	0.9	0.8
Insoluble dietary fiber, %	10.8	10.2	10.3	10.4	10.0	10.3
Total dietary fiber, %	12.2	10.8	11.5	11.2	10.9	11.1
Phytase, FTU/kg (AOAC)	100	560	1,200	1,800	4,000	1,100
Phytase, FTU/kg (ISO 30024:2009)	242	806	1,370	2,379	4,347	1,314
Ca, %	0.61	0.64	0.62	0.66	0.71	0.69
P, %	0.32	0.33	0.33	0.33	0.35	0.36
Phytic acid, %	0.80	0.78	0.83	0.80	0.79	0.82
Phytate-bound P2, %	0.23	0.22	0.23	0.23	0.22	0.23
Non-phytate P3, %	0.09	0.11	0.10	0.10	0.13	0.13
Na, %	0.16	0.16	0.16	0.16	0.17	0.16
Mg, %	0.13	0.12	0.13	0.13	0.13	0.13
K, %	0.76	0.77	0.78	0.78	0.76	0.77
S, %	0.19	0.17	0.18	0.18	0.18	0.19
Cl, %	0.34	0.34	0.35	0.36	0.34	0.33
Cu, mg/kg	30.6	33.4	28.8	25.0	26.9	23.4
Zn, mg/kg	139	138	139	135	143	136
Mn, mg/kg	64.2	71.7	74.0	67.7	70.2	74.2
Fe, mg/kg	200	225	192	207	182	194
Se, mg/kg	0.55	0.50	0.46	0.45	0.50	0.49

¹FTU, phytase units; AEE, acid hydrolyzed ether extract.

²Calculated as 28.2% of phytic acid (Tran and Sauvant, 2004).

³Calculated as total P – phytate-bound P.