Table 4 The effects of xylanase on the growth performance of Nile tilapia

Initial weight, g

4.09 ± 0.02

4.09 ± 0.02

Final weight, g

26.74 ± 0.29^a

23.85 ± 1.18^b

Weight gain, g

22.66 ± 0.26^a

19.77 ± 1.19^b

Feed conversion ratio

0.86 ± 0.02

0.88 ± 0.04

Viscera index, %

12.92 ± 1.69^a

10.7 ± 1.29^b

Hepatosomatic index, %

1.18 ± 0.39^b

1.72 ± 0.26^a

Mesenteric fat index, %

0.13 ± 0.15

0.1 ± 0.08

Carcass ratio, %

48.05 ± 2.58^b

50.67 ± 1.68^a