Table 2 Qualitative statistical analysis (Mean ± SE) for the effect of salinity and vitamin D on final body-weight, weight gain, final total length, length gain and K factor of juvenile red tilapia hybrids.

From: Effects of vitamin D supplementation under different salinities on hybrid red tilapia growth performance, hormonal profile and growth genes expression

Treatments

Final weight (g)

Weight gain (g)

Final length (cm)

Length gain (cm)

K factor

Main effects

 Salinity level

 

  0 ppt

 

19.63\(\:\pm\:\)1.01b

19.4\(\:\pm\:\)1.01b

12.87\(\:\pm\:\)0.17b

11.47\(\:\pm\:\)0.168b

0.92\(\:\pm\:\)0.04b

  15 ppt

 

30.87\(\:\pm\:\)2.22a

30.79\(\:\pm\:\)2.19a

13.82\(\:\pm\:\)0.11a

12.42\(\:\pm\:\)0.11a

1.17\(\:\pm\:\)0.09a

  30 ppt

 

34.37\(\:\pm\:\)2.09a

34.17\(\:\pm\:\)2.09a

14.05\(\:\pm\:\)0.18a

12.66\(\:\pm\:\)0.18a

1.23\(\:\pm\:\)0.06a

 Vitamin D

  D0

 

23.67\(\:\pm\:1.85\)b

23.58\(\:\pm\:1.87\:\)b

13.39\(\:\pm\:0.22\:\)b

11.99\(\:\pm\:0.22\:\)b

0.97\(\:\pm\:0.06\:\)b

  D1

 

26.24\(\:\pm\:\)2.01b

26.04\(\:\pm\:\)2.02b

13.47\(\:\pm\:0.21\:\:\)b

12.07\(\:\pm\:\)0.21b

1.06\(\:\pm\:\)0.05b

  D2

 

34.98\(\:\pm\:2.98\:\)a

34.78\(\:\pm\:2.98\:\)a

13.89\(\:\pm\:\)0.24 a

12.9\(\:\pm\:0.24\:\)a

1.29\(\:\pm\:0.08\:\)a

Two-way ANOVA

 Salinity level

 

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

 Vitamin D

 

< 0.001

< 0.001

0.044

0.044

< 0.001

 Salinity * VD

 

0.004

0.005

0.034

0.034

0.011

 Interaction

 

Salinity

VD

 

  T1

0 ppt

D0

16.65\(\:\pm\:\)0.19f

16.45\(\:\pm\:\)0.19f

12.67\(\:\pm\:\)0.18c

11.27\(\:\pm\:\)0.18c

0.82\(\:\pm\:\)0.04e

  T2

D1

18.89\(\:\pm\:\)0.52f

18.69\(\:\pm\:\)0.52f

12.77\(\:\pm\:\)0.43c

11.37\(\:\pm\:\)0.43c

0.92\(\:\pm\:\)0.07de

  T3

D2

23.37\(\:\pm\:\)0.52e

23.17\(\:\pm\:\)0.52e

13.17\(\:\pm\:\)0.23bc

11.77\(\:\pm\:\)0.23bc

1.03\(\:\pm\:\)0.07cde

  T4

15 ppt

D0

25.48\(\:\pm\:\)0.45de

25.62\(\:\pm\:\)0.72de

13.87\(\:\pm\:\)0.37b

12.47\(\:\pm\:\)0.37b

0.96\(\:\pm\:\)0.08de

  T5

D1

27.62\(\:\pm\:\)1.27cd

27.42\(\:\pm\:\)1.27cd

13.77\(\:\pm\:\)0.09b

12.37\(\:\pm\:\)0.09b

1.06\(\:\pm\:\)0.03cd

  T6

D2

39.52\(\:\pm\:\)0.41a

39.32\(\:\pm\:\)0.41a

13.83\(\:\pm\:\)0.067b

12.43\(\:\pm\:\)0.07b

1.49\(\:\pm\:\)0.03a

  T7

30 ppt

D0

28.88\(\:\pm\:\)0.97C

28.68\(\:\pm\:\)0.97c

13.63\(\:\pm\:\)0.12b

12.23\(\:\pm\:\)0.12b

1.14\(\:\pm\:\)0.07bcd

  T8

D1

32.20\(\:\pm\:\)1.11b

32.00\(\:\pm\:\)1.11b

13.87\(\:\pm\:\)0.07b

12.47\(\:\pm\:\)0.07b

1.21\(\:\pm\:\)0.04bc

  T9

D2

42.04\(\:\pm\:\)1.88a

41.84\(\:\pm\:\)1.88a

14.67\(\:\pm\:\)0.29a

13.27\(\:\pm\:\)0.29a

1.34\(\:\pm\:\)0.15ab

  1. The data is presented as mean \(\:\pm\:\) standard error of mean (SEM) in tables.
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