View Full Table | Close Full ViewTable 1.

Composition of both diets used in this study

 
Item Control diet1 Probiotic diet
B. cereus var. toyoi, cfu/g 2 × 104
CP, % 64.2 ± 0.4 64.3 ± 0.3
Fat, % 11.8 ± 0.3 11.9 ± 0.2
Ash, % 11.2 ± 0.2 11.1 ± 0.2
Fiber, % 0.50 ± 0.01 0.50 ± 0.01
GE,2 KJ/kg 2,166 2,172
1Control diet: commercial diet (Aller Futura; Aller Aqua, Christiansfeld, Denmark).
2Gross energy content was estimated by using the following: total carbohydrate × 17.2 J/kg, fat × 39.5 J/kg, and protein × 23.5 J/kg.



View Full Table | Close Full ViewTable 2.

Growth performance [specific growth rate (SGR), Fulton’s condition factor (K), and G:F], survival rate, and chemical composition of rainbow trout, O. mykiss, fingerlings1

 
Item Control diet Probiotic diet
Growth performance
    SGR0to93d,2 %/d 2.50 ± 0.20 2.54 ± 0.11
    K3 1.43 ± 0.21 1.45 ± 0.15
    G:F2 0.90 ± 0.02 0.84 ± 0.01
    Survival rate,2 % 99.20 ± 0.80 98.90 ± 1.20
Composition,4 %
    Protein 41.40 ± 3.81 40.51 ± 1.51
    Lipid 17.62 ± 1.74 20.14 ± 0.81
    Carbohydrate 1.21 ± 0.01 1.11 ± 0.01
    Ash 2.21 ± 0.05 2.33 ± 0.06
1Control diet = commercial diet (Aller Futura; Aller Aqua, Christiansfeld, Denmark); probiotic diet = commercial diet containing B. cereus var. toyoi (2 × 104 cfu/g).
2Based on 3 replicate tanks per diet with 120 to 125 fish per tank.
3Mean K factor values were calculated using values of the individual final BW and final standard length of all the fish in the same dietary treatment (3 replicate tanks per diet with 120 to 125 fish per rank).
4Based on 3 replicate tanks per diet with 5 fish per tank.



View Full Table | Close Full ViewTable 3.

Specific activity of pancreatic (trypsin, chymotrypsin, and total proteases) and intestinal (alkaline phosphatase, aminopeptidase N, and maltase) enzymes of rainbow trout, O. mykiss, fingerlings1

 
Enzyme activity2 Control diet Probiotic diet
Trypsin, IU/mg protein 0.022 ± 0.003 0.024 ± 0.004
Chymotrypsin, mIU/mg protein 0.172 ± 0.060 0.124 ± 0.021
Total proteases, IU/mg protein 0.107 ± 0.011 0.112 ± 0.011
Alkaline phosphatase, IU/mg protein 0.651 ± 0.101 1.002 ± 0.141
Aminopeptidase N, IU/mg protein 0.010 ± 0.002 0.011 ± 0.001
Maltase, IU/mg protein 49.921 ± 8.561 51.762 ± 9.774
1Control diet = commercial diet (Aller Futura; Aller Aqua, Christiansfeld, Denmark); probiotic diet = commercial diet containing B. cereus var. toyoi (2 × 104 cfu/g).
2Based on 3 replicate tanks per diet with 5 fish per tank.