Table 2.
Growth performance of tilapia fed diets supplemented with Bacillus subtilis and/or Bacillus cereus for 6 wk.1
| Item | Groups2 |
|||
|---|---|---|---|---|
| CK | BS | BS + BC | BC | |
| IBW, g | 0.20 ± 0.02 | 0.20 ± 0.02 | 0.19 ± 0.02 | 0.20 ± 0.02 |
| WG, % | 2,595.69 ± 229.91a | 2,772.65 ± 229.21a | 3,527.77 ± 359.08b | 3,532.20 ± 403.43b |
| FCR | 1.39 ± 0.05b | 1.33 ± 0.07b | 1.07 ± 0.04a | 1.04 ± 0.02a |
| SR, % | 94.07 ± 6.12 | 91.11 ± 2.22 | 89.63 ± 2.31 | 93.33 ± 2.94 |
IBW = initial body weight; WG = weight gain; FCR = feed conversion ratio; SR = survival rate.
a, bWithin a row, means with different letter superscripts are significantly different (P < 0.05).
1
Data represent means ± standard deviation (n = 6 fish).
2
CK group: the basal diet; BS group: the basal diet with 1 × 108 CFU/g of B. subtilis; BS + BC group: the basal diet with both 0.5 × 108 CFU/g of B. subtilis and B. cereus NY5; BC group: the basal diet with 1 × 108 CFU/g of B. cereus NY5.