Table 8 The digestive enzyme activity of nile tilapia fed fermented and non-fermented rice polishings.

Lipase activity (unit/mg)

1.42 ± 0.08^c

1.7 ± 0.05^b

2.4 ± 0.06^a

1.9 ± 0.05^b

1.16 ± 0.03^c

Amylase activity (unit/mg)

2.7 ± 0.16^c

3.7 ± 0.19^bc

6.18 ± 0.4^a

5.08 ± 0.05^b

2.67 ± 0.14^c

Protease activity (unit/mg

0.45 ± 0.05^c

0.77 ± 0.04^b

1.18 ± 0.04^a

1.03 ± 0.09^ab

0.39 ± 0.05^c