Phytase
(FTU/g)
Initial weight Final weight (g) Weight gain (g) SGR FCR Survival rate (%) Ca /P
0 309.94 ± 13.80 1116.37 ± 428.04 807.93 ± 428.67 1.46 ± 0.48 4.48 ± 6.47 90.38 ± 9.64 1.40 ± 0.12a
250 292.49 ± 46.32 1127.8 ± 336.33 835.32 ± 344.72 1.55 ± 0.60 1.85 ± 0.91 89.42 ± 11.21 1.46 ± 0.04a
500 307.37 ± 28.45 991.98 ± 322.57 684.61 ± 316.63 1.42 ± 0.39 2.28 ± 1.34 94.71 ± 6.48 1.71 ± 0.35b
750 326.61 ± 31.76 1096.97 ± 413.94 775.36 ± 400.46 1.25 ± 0.66 2.41 ± 1.38 96.15 ± 3.56 1.59 ± 0.14ab
1000 307.33 ± 30.20 1016.42 ± 371.84 709.04 ± 381.61 1.42 ± 0.46 2.51 ± 1.60 85.43 ± 18.84 1.54 ± 0.17ab
Total 308.80 ± 31.45 1072.12 ± 364.99 764.62 ± 365.09 1.42 ± 0.51 2.79 ± 3.37 91.18 ± 11.24 1.53 ± 0.21
Table 4: Effects of phytase on growth and nutrient utilization in Clarias gariepinus fed soyabean based diet.