Table 1 Fatty acid composition (as % of total FA) of experimental diets and Siberian sturgeon at t0 and t1.

From: Physiological responses of Siberian sturgeon (Acipenser baerii) juveniles fed on full-fat insect-based diet in an aquaponic system

 

Diets

Sturgeon

Hi0

Hi50

t0

t1

Hi0

Hi50

Hi0

Hi50

10:0

0.020 ± 0.001

0.570 ± 0.010****

0.005 ± 0.001

0.004 ± 0.001

0.003 ± 0.001

0.004 ± 0.001

12:0

0.18 ± 0.01

8.1 ± 0.7****

0.15 ± 0.04

0.12 ± 0.03

0.10 ± 0.03

2.35 ± 0.60****

13:0

0.06 ± 0.001

n.d

0.032 ± 0.001

0.029 ± 0.001

0.030 ± 0.002

0.044 ± 0.005

14:0

5.67 ± 0.06

4.6 ± 0.3**

2.80 ± 0.09

2.67 ± 0.04**

3.81 ± 0.12

3.73 ± 0.21ns

14:1n5

0.53 ± 0.01

n.d

0.34 ± 0.01

0.32 ± 0.01

0.41 ± 0.01

0.82 ± 0.07****

15:0

0.61 ± 0.01

0.58 ± 0.03 ns

0.61 ± 0.01

0.59 ± 0.01***

0.60 ± 0.01

0.57 ± 0.01****

15:1n5

n.d

n.d

n.d

n.d

n.d

n.d

16:0

14.5 ± 0.3

17.1 ± 0.6**

13.9 ± 0.1

13.7 ± 0.1***

14.7 ± 0.2

12.3 ± 0.1****

16:1n9

0.36 ± 0.01

6.3 ± 0.3****

0.49 ± 0.01

0.48 ± 0.01

0.49 ± 0.01

0.74 ± 0.06**

16:1n7

6.25 ± 0.04

n.d

4.37 ± 0.01

4.29 ± 0.01****

5.81 ± 0.11

5.60 ± 0.42ns

16:2n7

0.28 ± 0.01

n.d

0.30 ± 0.02

0.28 ± 0.01

0.13 ± 0.02

0.21 ± 0.01

17:0

0.53 ± 0.09

n.d

0.48 ± 0.09

0.55 ± 0.08

0.50 ± 0.01

0.41 ± 0.06

17:1n7

n.d

n.d

n.d

n.d

n.d

n.d

18:0

3.87 ± 0.01

13.1 ± 1.8***

3.21 ± 0.02

3.00 ± 0.02****

2.95 ± 0.39

3.44 ± 0.16**

18:1n9

9.94 ± 0.06

2.30 ± 0.20****

17.7 ± 0.1

17.6 ± 0.1*

16.5 ± 0.3

17.1 ± 0.2***

18:1n7

2.26 ± 0.01

n.d

2.66 ± 0.01

2.66 ± 0.02ns

2.91 ± 0.04

2.61 ± 0.17****

18:2n6

9.06 ± 0.03

27.4 ± 2.3***

12.9 ± 0.1

12.9 ± 0.1ns

12.5 ± 0.3

17.5 ± 1.3****

18:3n6

n.d

n.d

n.d

n.d

n.d

n.d

18:3n3

1.91 ± 0.06

3.4 ± 0.3**

2.51 ± 0.01

2.51 ± 0.01ns

2.03 ± 0.12

1.86 ± 0.06**

20:0

0.36 ± 0.01

n.d

0.24 ± 0.01

0.23 ± 0.01

0.19 ± 0.01

0.12 ± 0.02

20:1n9

1.83 ± 0.03

n.d

3.17 ± 0.04

3.19 ± 0.01ns

2.25 ± 0.12

1.80 ± 0.27***

20:2n6

0.33 ± 0.03

n.d

1.26 ± 0.05

1.24 ± 0.03ns

1.10 ± 0.02

1.93 ± 0.07****

20:3n6

0.26 ± 0.02

n.d

0.57 ± 0.08

0.53 ± 0.02 ns

0.53 ± 0.01

1.26 ± 0.07****

21:0

n.d

n.d

n.d

n.d

n.d

n.d

20:4n6

1.23 ± 0.01

n.d

1.48 ± 0.02

1.49 ± 0.02ns

1.27 ± 0.04

2.27 ± 0.16****

20:3n3

0.17 ± 0.01

n.d

0.43 ± 0.01

0.43 ± 0.01

0.30 ± 0.02

0.30 ± 0.04

20:5n3

17.3 ± 0.2

4.8 ± 0.4****

6.15 ± 0.04

6.26 ± 0.03****

9.29 ± 0.18

4.51 ± 0.05****

22:0

0.24 ± 0.01

n.d

0.081 ± 0.001

0.077 ± 0.003

0.063 ± 0.003

0.039 ± 0.009

22:1n9

1.53 ± 0.03

n.d

1.19 ± 0.05

1.19 ± 0.03ns

0.62 ± 0.06

0.25 ± 0.14****

23:0

n.d

n.d

n.d

n.d

n.d

n.d

24:0

n.d

n.d

n.d

n.d

n.d

n.d

22:6n3

20.7 ± 0.3

11.7 ± 1.5***

22.9 ± 0.1

23.6 ± 0.2****

21.0 ± 0.3

18.2 ± 1.7***

24:1n9

n.d

n.d

n.d

n.d

n.d

n.d

DHA/EPA

1.19 ± 0.03

2.5 ± 0.5*

3.7 ± 0.1

3.8 ± 0.1*

2.26 ± 0.06

4.0 ± 0.3****

  1. Experimental diets included 0 and 50% of BSF meal respect to FM (Hi0 and Hi50). Siberian sturgeon fed diets including 0 and 50% of BSF meal (Hi0 and Hi50). Significant differences between Hi0 and Hi50 within rows and separately from diets, t0 and t1 are indicated as follows: ns non-significant; *p < 0.05; **p < 0.01; ***p < 0.001 and ****p < 0.0001. Values are shown as mean ± SD (n = 3 for experimental diets; n = 9 for sturgeon at both t0 and t1). Statistical analysis was performed only for FAs > 0.5% (FA with a percentage < 0.5% were excluded from any statistical analyses because their concentrations were close to the limit of detection).
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