Effect of phytase on bone minerals

Phytase	Phosphorus (%)	Calcium (%)	Magnesium (%)	Iron (%)	Zinc (%)	Phosphorus retention efficiency
0 FTU	4.17 ± 1.25^a	2.21 ± 0.50	0.18 ± 0.06	4.53 ± 2.16	29.38 ± 3.01^a	0.53 ± 0.54
250 FTU	4.41 ± 1.16^b	2.26 ± 0.47	0.17 ± 0.03	3.61 ± 0.89	32.71 ± 3.22^a	0.73 ± 0.23
500 FTU	4.17 ± 1.38^a	2.13 ± 0.42	0.18 ± 0.05	4.70 ± 2.88	31.03 ± 4.43^a	0.58 ± 0.25
750 FTU	3.97 ± 1.06a^b	2.07 ± 0.44	0.21 ± 0.05	3.60 ± 1.46	30.86 ± 5.44^a	0.57 ± 0.20
1000 FTU	3.54 ± 0.50^c	1.98 ± 0.45	0.21 ± 0.08	3.56 ± 2.08	30.39 ± 2.97^a	0.58 ± 0.15
Sig	P>0.05	P>0.05	P>0.05	P>0.05	P>0.05	P>0.05

Table 8: Effect of phytase on bone minerals and phosphorus retention efficiency in fish fed soybean diet.